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27 terms

Test 4

8dsh
STUDY
PLAY
The glomerular capsule is composed of two layers of squamous epithelial cells
True
The efferent arteriole supplies blood to the capillary of the glomerulus
False
Glomerular filtrate has a composition similar to tissue fluid
True
Sympathetic nerve impulses usually cause proportional degrees of vasodilation in the afferent and efferent arterioles
False
If the osmotic pressure of the blood plasma is decreased, the glomerular filtration rate is increased
True
The glomerular filtrate in the proximal convoluted tubule is isotonic to the plasma of the peritubular capillary
True
When the concentration of water in body fluids increases, the secretion of ADH increases
False
Urine is forced along the length of the ureter by peristaltic waves
True
The urinary bladder is located above the parietal peritoneum
False
Active transport mechanisms have limited transport capacities because the renal tubule is not very permeable to the absorption of molecules
False
Large amounts of hydrogen ions are secreted between plasma and urine by the nephron loop
False
An increase in sodium reabsorption increases water reabsorption by actively transporting sodium ions into the blood
False
ADH functions to increase absorption of water from urine into blood by increasing the permeability of the distal convoluted tubules and collecting ducts
True
Inulin clearance measures the rate of glomerular filtration
True
Inulin and para-aminohippuric acid (PAH) can be used to determine glomerular filtration rate and the rate of blood flow through the kidneys
True
The organs of the upper respiratory tract are located outside the thorax
True
The pharynx is an enlargement at the top of the trachea that houses the vocal cords
False
The glottis is the opening between the vocal cord
True
The left lung is larger than the right lung and is divided into three lobes
False
The pectoralis minors and the sternocleidomastoid are useful in aiding forced expiration
False
A sudden contraction of a diaphragm while the glottis is closed produces a sneeze
False
Ordinary air is about 21% oxygen and 78% nitrogen
True
Carbon monoxide bonds to hemoglobin more effectively than does oxygen
True
The greatest amount of carbon dioxide transported in the blood is in the form of dissolved carbon dioxide
False
The inflation reflex is activated when stretch receptors are stimulated during inspiration
True
Oxygen is carried in the blood in the form of bicarbonate ions and is bound to hemoglobin
False
Carbon monoxide is toxic because it attacks and destroys the respiratory center in the brain
False