Answer the following statements true (T) or false (F)
1. Closure of the epiphyseal plate stops all bone growth.
2. The apocrine sweat glands are fairly unimportant in thermoregulation.
3. Skin surface markings that reflect points of tight dermal attachment to underlying tissues are called epidermal ridges.
4. The dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.
5. The outermost sheath of a hair follicle is the connective tissue root sheath.
1. FALSE
2. TRUE
3. FALSE
4. TRUE
5. TRUE
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Which of the following best explains how the phenomenon of "tolerance" develops with use of psychoactive drugs over time?
A. Psychoactive drugs can up-regulate receptors for endogenous neurotransmitters. B. Psychoactive drugs can inhibit production of endogenous neurotransmitters. C. Psychoactive drugs often produce euphoria. D. Psychoactive drugs can alter blood flow to the brain. E. Psychoactive drugs can cross the blood-brain barrier.
During heart transplants, the _____ nerves are severed resulting in a faster resting heart rate (approximately 100 beats per minute) after the transplant
a) glossopharyngeal b) cardiac accelerator c) vagus d) phrenic e) cervical spinal
Which is an example of surface tension?
A) Absorption of heat by the surface of a solution B) Cohesion of water molecules at the air and water boundary of the alveolus C) Hydrolysis reactions of water molecules and salts D) Tendency for evaporation on the surface of a solution
The ________ innervation of the kidneys reduces urine production, while the function of its ________ innervation is unknown
A) sympathetic; parasympathetic B) enteric; somatic C) parasympathetic; sympathetic D) central; peripheral E) peripheral; central