CH17 Pics

Question 1

Name the struture labelled A

Answer 1

Hyoid Bone

Question 2

Name the struture labelled B

Answer 2

Thyroid cartilage

Question 3

Name the struture labelled C

Answer 3

Inferior thyroid artery

Question 4

Name the struture labelled D

Answer 4

Epiglottis

Question 5

Name the struture labelled F

Answer 5

Isthmus of thyroid gland

Question 6

Name the struture labelled E

Answer 6

Superior thyroid artery

Question 7

Name the struture labelled G

Answer 7

Left lateral lobe of thryroid gland

Question 8

Which cells are shown marked A?

Answer 8

Thyoid follicular cells

Question 9

what is happening at the point marked 1?

Answer 9

Thyroglobulin is synthesized and discharged into the follicle lumen

Question 10

what is happening at the point marked 2?

Answer 10

Iodide (I-) is trapped or actively transported in

Question 11

what is happening at the point marked 3?

Answer 11

Iodide is oxidized to iodine

Question 12

what is happening at the point marked 4?

Answer 12

Iodine is attached to tyrosine in colloid, forming DIT and MIT

Question 13

what is happening at the point marked 5?

Answer 13

Iodinated tyrosines are linked together to form T3 and T4

Question 14

what is happening at the point marked 6?

Answer 14

Thyroglobulin colloid is endocytosed and combihned with a lysosome

Question 15

what is happening at the point marked 7?

Answer 15

Lysosomal enzymes cleave T3 and T4 from thyroglobulin and hormones diffuse into bloodstream

Question 16

what is the structure marked A?

Answer 16

Posterior lobe of pituitary

Question 17

What is happening at the point marked 1?

Answer 17

Hypothalamic neurons synthesize oxytocin or ADH

Question 18

What is happening at the point marked 2?

Answer 18

Oxytocin or ADH are transported down the axons of the hypothalamic hypophyseal tract to the posterior pituitary

Question 19

What is happening at the point marked 3?

Answer 19

Oxytocin and ADH are stored in axon terminals of the posterior pituitary

Question 20

What is happening at the point marked 4?

Answer 20

When hypothalamic neurons fire, action potentials arriving at the axon terminals release oxytocin and ADH into the blood

Question 21

what is happening at the point marked A?

Answer 21

PTH release from parathyroid gland

Question 22

what is happening at the point marked B?

Answer 22

Osteoclast activity in bone causes CA2+ and PO43 release into blood

Question 23

what is happening at the point marked C?

Answer 23

CA2+ reabsorption in the kidney tubule

Question 24

what is happening at the point marked D?

Answer 24

Activation of vitamin D by kidney

Question 25

what is happening at the point marked E?

Answer 25

CA2+ absorption from food in the small intestine

Question 26

What type of actions are promoted at the A route?

Answer 26

Indirect actions (growth promoting)

Question 27

what type of actions are promoted at the B route?

Answer 27

Direct actions (metabolic/anti-insulin)

Question 28

WHich part of the adrenal gland is indicated at point A?

Answer 28

Medulla

Question 29

Which part of the adrenal gland is indicated at point b?

Answer 29

Cortex

Question 30

Which part of the adrenal histology is indicated at point C?

Answer 30

Cortex

Question 31

Which part of the adrenal histology is indicated at point D?

Answer 31

Medulla

Question 32

Which layer of the adrenal gland is indicated at point E ?

Answer 32

Zona glomerulosa

Question 33

Which layer of the adrenal gland is indicated at point F?

Answer 33

Zona fasciculata

Question 34

Which layer of the adrenal gland is indicated at point G?

Answer 34

Zona reticularis

Question 35

Which layer of the adrenal gland is indicated at point H?

Answer 35

Adrenal medulla

Question 36

Which hormones are secreted at point I ?

Answer 36

Aldosterone

Question 37

Which hormones are secreted at point J?

Answer 37

Cortisol and androgens

Question 38

Which hormones are secreted at point K?

Answer 38

Epinephrine and norepinephrine