(final) Lecture 13 (5/23/16) PT. 2 Flashcards Preview

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Flashcards in (final) Lecture 13 (5/23/16) PT. 2 Deck (33):
1

Renal arteries are branches of what?

descending aorta

2

Branches of the renal arteries eventually give rise to...

glomeruli

3

Kidneys are drained by...
Which dumps into...

renal veins
inferior vena cava

4

Sympathetic innervation of kidneys:
Ganglion:

T5-T9 & T10-T11
celiac ganglion

5

Sympathetic function of kidneys:

may constrict the blood flow to afferent arterioles which decreases overall kidney output

6

Parasympathetic innervation of kidneys:
Synapse:

Vagus
synapse on target organ

7

Parasympathetic function:

may increase blood flow to kidneys
increase kidney filtration function

8

Vascularization of bladder
Artery:
Vein:

A: superior and inferior vesicle arteries
V: superior and inferior vesicle veins

9

Sympathetic innervation of bladder:
Synapse:

T12-L2
synapse in inferior mesenteric plexus and postgnaglionics leading to hypogastric plexus

10

Sympathetic function of bladder:

-inhibit constriction of muscular wall of bladder (detrusor)
-contract sphincters

11

Parasympathetic innervation of the bladder:
Synapse:

pelvic nerve S2-4
synapse on bladder wall

12

Parasympathetic function of bladder:

-stimulate constriction of muscular wall of bladder (detrusor)
-relax sphincters

13

Which germ layers will usually form epithelia?

ectoderm and endoderm

14

Nerve cells that produce hormones and secrete them into the bloodstream are called...

neurosecretory cells

15

Where are neurosecretory cells found?

hypothalamus

16

Where does the pituitary gland sit?

sella turcica

17

Remember...
What bone contains the sella turcica?

in the medial cranial fossa of the sphenoid bone

18

Two lobes of pituitary:

Anterior pituitary and posterior pituitary

19

The stalk that connects the hypothalamus and the pituitary:

Infundibulum

20

The hypothalamus is derived from...

neural ectoderm

21

The hypothalamus is an outgrowth of...

the brain

22

The name of the posterior pituitary is...
And is an outgrowth of...
Derived from...

Neurohypophysis
hypothalamus
neural ectoderm

23

The name of the anterior pituitary is...
And is an outgrowth of...
Derived from...

Adenohypophysis
roof of mouth
ectoderm

24

Innervation of hypothalamus and pituitary gland:

"innervated by the brain"
- Noriega

25

Some hypothalamic neurons secrete what?

neurohormones

26

What do neurohormones do?

they go down infundibulum and terminate near capillaries serving posterior pituitary

27

Hypothalamus and pituitary gland...
Arterial supply:
Venous drainage

A: circulus arteriosus cerebri
V: cavernous venous sinus

28

Hypothalamic hormone pathway (released by neurohypophysis):

enclosed in vesicles that move down axon and accumulate near terminal ends that are close to the posterior pituitary's capillaries

29

(neurohypophysis)
In response to an action potential, hormones are released from vesicles into...

venous capillaries

30

(neurohypophysis)
What are manufactured in the hypothalamus but released in the posterior pituitary?

oxytocin
vasopressin

31

(neurohypophysis)
Oxytocin and vasopressin re manufactured where? Released where?

hypothalamus
in the posterior pituitary

32

Hypothalamic hormone pathway (released by adenohypophysis):

enclosed in vesicles that move down axon and accumulate near terminal ends that are close to pituitary stalk

33

(adenohypophysis)
In response to an action potential, hormones are released from vesicles into...

pituitary portal system