Results and stats for "Breast anatomy"
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Average score: 42.4
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Total plays: 24
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Related quizzes
Most correctly guessed answers
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Where in the body can supernumary nipples or supernumary breast develop?
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Along the milk line
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100.0%
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Does the venous drainage of the breast match the arterial supply?
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Yes
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100.0%
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The medial border of the breast doesn't usually extend beyond the lateral border of the [...].
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sternum
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95.8%
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In which quadrant of the breast does the greatest amount of glandular tissue lie?
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Upper outer quadrant
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95.8%
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In which quadrant of the breast is the axillary tail (of Spence) found?
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Upper outer quadrant
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95.8%
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What is the pigmented region of the nipple called?
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Areola
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95.8%
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What happens to the alveolar glands during pregnancy and after weaning?
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Hypertrophy during pregnancy
Regress after weaning
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95.8%
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As a general rule, cancer may spread by 3 means. What are they?
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Blood vessels
Lymph vessels
Direct invasion of surrounding tissues
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95.8%
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Lymph from the [...] quadrants can cross to the opposite breast, thus secondary metastases of breast carcinoma can spread.
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medial
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95.8%
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Where does the milk line run from and to?
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The armpits to the groin
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91.7%
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What are the 5 areas of the breast?
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Nipple and areolar area
Upper lateral quadrant
Upper medial quadrant
Lower lateral quadrant
Lower medial quadrant
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91.7%
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What is the central raised bud of the nipple called?
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Papilla
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91.7%
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How many lactiferous ducts can be found in a breast?
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15-20 (1 per lobe)
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91.7%
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What can retraction of the nipple signify in terms of malignancy?
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That malignant cells have contracted the suspensory ligaments of the breast
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91.7%
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Why is the vertebral venous plexus of Batson important in allowing breast cancer to spread easily to the brain or abdomen?
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It is a valve-less set of veins in the vertebral column which allows cancer to spread in either direction
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91.7%
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What percentage of carcinomas of the breast originate in the ductal epithelium?
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80%
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91.7%
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What percentage of carcinomas of the breast originate in the glandular epithelium?
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20%
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91.7%
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What is the importance of Montgomery's glands in the papilla of the nipple?
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Keep the papillary skin supple during sucking, if they fail - 'cracked nipple'
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87.5%
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Each of the 15-20 [...] ducts which drain a single lobe in the breast drain into a [...] sinus before terminating separately in the nipple.
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lactiferous, lactiferous
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87.5%
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The non-lactating breast is [...]% fat.
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90
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83.3%
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How is the breast separated from the pectoralis major muscle?
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Retromammary fascia
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83.3%
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What spinal nerves do the pre-ganglionic sympathetic fibres of the breast arise from?
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T2-T6
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83.3%
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What are the most common sites for lymph node metastases in breast cancer? (2)
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Axillary nodes
Internal thoracic nodes (found behind the sternum)
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83.3%
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What is mastitis?
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Inflammation of the breast tissue
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83.3%
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How does a breast carcinoma feel?
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Gravel
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83.3%
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The smallest ducts of the breast are lined by a simple [...] epithelium and surrounded by loose connective tissue.
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cuboidal
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83.3%
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How is the retromammary fascia visible on a mammogram?
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As the retromammary space
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79.2%
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What percentage of women have congenitally-inverted nipples?
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3%
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79.2%
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Why are the posterior intercostal veins important in allowing the spread of breast cancer?
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These veins connect with the azygos system of veins in the posterior chest wall so allow spread of metastases to the vertebral column
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79.2%
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Why does oedema of the breast occur in advanced breast cancer?
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Due to blockage of the lymphatic vessels by the metastatic cancer cells
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79.2%
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Connective tissue septa divide the breast into [...] lobes.
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15-20
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75.0%
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What are the two main veins that are important in drainage of the breast?
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Lateral thoracic vein
Internal thoracic vein
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75.0%
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The axillary lymph nodes receive more than [...]% of the lymph of the breast.
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75
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75.0%
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How common are supernumary nipples or supernumerary breasts?
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3%
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70.8%
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Breast lobules secrete into [...] ducts which converge to form [...] ducts.
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interlobular/alveolar, lactiferous
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70.8%
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What is the blood supply to the medial half of the breast?
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First 4 perforating branches of the internal thoracic artery
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70.8%
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During breast surgery, where should incisions be made in order to preserve blood supply?
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Below the nipple if possible, as main arterial supply is located superior to the nipple
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70.8%
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What do the lymph vessels which drain the breast run alongside? (2)
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Internal thoracic artery
Lateral thoracic artery
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70.8%
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Lymph from the [...] quadrants of the breast drains into the [...] lymph nodes.
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medial, parasternal
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70.8%
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If the mammary gland is inactive the glandular component is sparse, and the [...] tissue and dense [...] tissue will make up the bulk of the gland.
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adipose, irregular connective
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70.8%
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The interlobar/alveolar ducts of the breast are lined by a double layer of [...] cells.
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cuboidal
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70.8%
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What is the blood supply to the lateral part of the breast?
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Lateral thoracic artery
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66.7%
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What are the names of the lymph nodes which drain the breasts? (2)
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Axillary nodes
Internal thoracic chain
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66.7%
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What are the 2 muscles that the breast lies upon?
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Pectoralis major
Serratus anterior
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62.5%
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The axillary tail of the breast pierces the deep fascia of the [...] muscle and passes through an opening in deep fascia called the [...] to reach the axilla.
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pectoralis major, foramen of Langer
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62.5%
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The breast is supplied by the [...] and [...] cutaneous branches of the [...] to [...] intercostal nerves.
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lateral, anterior, 2nd, 6th
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62.5%
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What are the three most common sites of metastases from breast cancer?
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Lungs
Bone
Liver
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62.5%
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Which nerves supply the breast with both somatosensory and sympathetic innervation?
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Intercostal nerves
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58.3%
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Why could bleeding from the nipple occur in breast cancer?
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The cancer breaks down the wall of the duct and infiltrates the connective tissue, so blood can enter the ductal system
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58.3%
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The connective tissue of the septa in the breast is a dense irregular connective tissue rich in [...] and [...] fibres.
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collagen, elastic
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58.3%
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Acini in the breast are lined by a [...] epithelium.
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simple cuboidal
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58.3%
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At what point during pregnancy do the alveolar glands of the breast begin to hypertrophy?
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2nd month
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54.2%
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The acini of the breast are surrounded by a [...] connective tissue.
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loose
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54.2%
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The lactiferous ducts and the ampulla of the breast are lined by a [...] epithelium.
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stratified squamous non keratinised
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41.7%
