Answer the following statements true (T) or false (F)
1. The pituitary gland, adrenal gland, and the heart all produce hormones that help control urine volume.
2. Renal colic is caused by high concentrations of glucose in the urine.
3. The bladder can easily hold 300 to 400 mL of urine.
4. The kidneys help regulate both electrolytes and red blood cell production.
5. The kidneys help regulate blood pressure and the pH of the blood.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
5. TRUE
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Almost immediately following a compound fracture of the femur in an automobile accident, an otherwise healthy patient suffered severe respiratory distress and died. The most likely cause of death was:
A) loss of blood. B) infection. C) pulmonary fat embolism. D) sympathetic overactivity. E) myocardial infarction.
The human lens focuses light on the photoreceptor cells by
A) moving up and down. B) moving in and out. C) changing shape. D) opening and closing. E) dilating and constricting.
Which best describes an event that occurs as part of the crossed-extensor reflex?
A. Monosynaptic excitatory stimulation of ipsilateral extensor muscles occurs. B. It stimulates contraction of the contralateral flexor and inhibits contraction of the contralateral extensor. C. It is initiated by stretch in the ipsilateral extensor muscle. D. Inhibitory interneurons are activated, which synapse onto contralateral extensor muscles. E. It stimulates contraction of the contralateral extensor and inhibits contraction of the contralateral flexor.
The structures that help prevent toxins in the blood from reaching the brain make up the __________ __________ barrier.
Fill in the blank(s) with the appropriate word(s).