clicker questions 4/29

The primary force driving filtration is___

and the force driving reapsortion is _____

blood pressure ; colloid osmotic pressure

which is NOT a function of the kidney

urine storage

an obstruction of afferent arteriole would reduce flow directly to the

glomerulus

the ____ is a functional unit of the kidney

nephron

Which of the following would increase the glomerular filtration rate?

Vasoconstriction of the efferent arteriole

The cells of the distal convoluted tubule in contact with the afferent arteriole are

macula densa

This byproduct of protein catabolism constitutes approximately one-half of all nitrogenous waste.

urea

Intense sympathetic stimulation of the kidney

decreases filtration rate

Most (65%) of the reabsorbtion in the kidney takes place in the ________.

proximal convoluted tubule

is a hormone that regulates sodium reabsorption by the distal convoluted tubule.

Aldosterone

The ability of the kidney to concentrate urine depends on

a high medullary concentration gradient.

If not for the countercurrent multiplier, the kidneys could not produce

hypertonic urine

Normal urine from a healthy person can be expected to contain all of the following except

glucose

Urinary tract infections are more common in ______ do to the shorter _______.

females; shorter

In which of the following locations is filtrate osmolality highest?

tip of the loop of Henle

Which of the following is NOT part of the gastrointestinal tract?

liver

The movement of molecules out of the digestive tract into circulation or the lymphatic system is

absorption.

The abdominal cavity is lined with

parietal peritoneum.

Parasympathetic nerves extend to the digestive tract through the ______ nerve.

vagus

The salivary glands located just anterior to the ear are the

parotid glands

Which layer of the digestive tract is in direct contact with the food consumed?

mucosa

Which of the following cell types is correctly matched with its function?

parietal cells - produce hydrochloric acid

The hepatopancreatic ampulla is formed by the union of the

common bile duct and pancreatic duct.

Food in the stomach is squeezed and mixed with gastric juices, forming a semiliquid called

chyme

The function of the liver in digestion is to secrete

bile

Bile _____.

emulsifies fats in the small intestine.

What portion of the small intestine is most distal from the pylorus of the stomach?

ileum

The migrating motor complex

milks the chyme toward the colon.

Which of these is the site of contact digestion?

brush border of the small intestine