In: Anatomy and Physiology
1) Identify the CORRECT match of kidney structures or/and terms:
A. |
Fibrous capsule : deep layer |
|
B. |
Cortical nephron : peritubular capillaries |
|
C. |
PCT : macula densa |
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D. |
Kidney : intraperitoneal |
|
E. |
Glomerulus : continuous capillary (not fenestrated) |
2)
When a strong acid such as HCl is added to the carbonic acid buffer system, ________________.
A. |
None of the answers listed are correct |
|
B. |
the blood plasma pH is reduced |
|
C. |
carbonic acid is converted into bicarbonate |
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D. |
hydrochloric acid is neutralized by sodium hydroxide |
|
E. |
more carbonic acid is formed |
3)
The gastrocolic reflex normally:
I. is initiated by swallowing
II. inhibits gastric secretions and motility
III. inhibits the defecation reflex
IV. initiates mass movement in the large intestine
A. |
I, II, III, and IV |
|
B. |
I, II, and III only |
|
C. |
IV only |
|
D. |
II and IV only |
|
E. |
I and III only |
Ans1:- B) Cortical nephron : peritubular capillaries
Peritubular capillaries surround the cortical parts of the proximal and distal tubules, while the vasa recta go into the medulla to approach the loop of Henle. ... The higher osmolarity of the blood in the peritubular capillaries creates an osmotic pressure which causes the uptake of water.
Ans2:- c) carbonic acid is converted into bicarbonate.
To maintain the pH of body system . HCO3- is form which help to neutralise HCL
Ans3:- IV) initiates mass movement in the large intestine
The gastrocolic reflex is a physiological reflex that controls the motility of the lower gastrointestinal tract following a meal. As a result of the gastrocolic reflex, the colon has increased motility in response to the stretch of the stomach with the ingestion of food.
Swallowing doesn't initiate it . It is initiated by strech of stomach.
It promotes gastric secretion and motility.
It promotes dedication.