Course 4 Anatomy for real

Question 1

Blood supply thyroid

Answer 1

Inferior thyroid artery (subclavian)

Superior thyroid artery (carotid)

Question 2

Anatomical location thyroid

Answer 2

Deep to sternohyoid and sternothyroid muscles
Anterolateral to larynx & trachea
C5-T1 vertebral levels
Isthmus anterior to 2nd/3rd tracheal rings

Question 3

Anatomical location parathyroid

Answer 3

Typically superior by border of cricoid cartilage

Question 4

Pancreas Blood

Answer 4

Splenic artery: neck, body, tail
Pancreatico-duodenal artery/ superior mesenteric artery: head

Venous drainage:
splenic vein
superior mesenteric vein

Question 5

Anatomical location pancreas

Answer 5

Secondarily retroperitoneal
Head at C of duodenum
Tail at splenic hilum

Head: anterior to right renal vessels, IVC, left renal vein
Neck & Body: anterior to aorta

Question 6

Innervation Pancreas

Answer 6

Sympathetic: Greater and lesser splanchnic nerves (T5-T9) via the
Celiac plexus
Superior mesenteric plexus

Parasympathetic: Vagus nerve

Question 7

Anatomical position adrenals

Answer 7

Retroperitoneal
Superior pole of kidney
Anterior to crura of diaphragm

Surrounded by perirenal fat
Cortex + medulla

Question 8

Blood supply adrenal glands

Answer 8

Arterial:

1. Superior suprarenal aa. (from inferior phrenic a.
2. Middle suprarenal a. (aorta)
3. Inferior suprarenal (renal a.)

Venous:
suprarenal vein into Renal vein

Question 9

Innervation adrenals

Answer 9

Sympathetic:
Greater splanchnic nerve T5-T9

Parasympathetic:
Vagus

Question 10

Left recurrent laryngeal nerve

Answer 10

Branch of vagus nerve

Loops around aortic arch posterior to ligementum arteriosum

Question 11

Ureter blood supply

Answer 11

Renal
Gonadal
Vesicular
Vaginal

Question 12

Ureter innervation

Answer 12

Sympathetic: Renal Plexus T11-L2
Parasympathetic: vagus

Question 13

What are the embrylogical origins of the urinary tract structures?

Answer 13

Metanephric diverticulum: ureter, renal pelvis, calices, collecting ducts

Metanephric blastema: nephron tubules, renal corpuscle, prox/distal convoluted tubules, loop of henle

Question 14

What happens in polycystic kidney disease on an anatomical level?

Answer 14

Failure of diverticulum and blastema to meet: results in blind ended nephrons

Question 15

Innervation kidney:

Answer 15

Parasympathetic: vagus nerve
Sympathetic: Least splanchnic nerve (T10-L1)
Afferent innervation follows sympathetic supply, referred to level T11-L1

Question 16

Hydrocele

Answer 16

Failure of processus vaginalis to close- tunica vaginalis is not sealed
Transilluminates
Painless

Question 17

Hernia

Answer 17

Indirect: comes down inguinal canal because processus vaginalis has not closed
Direct: Comes through the anterior abdominal wall

Question 18

Prostatectomy results

Answer 18

Impotence- affects nerve plexus to erectile tissues (S234)