You would normally expect to find ____________________ in the alveoli of lungs.
A) simple squamous epithelium
B) simple cuboidal epithelium
C) stratified squamous epithelium
D) transitional epithelium
E) simple columnar epithelium
Ans: A) simple squamous epithelium
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Distinguishing the pitch of sounds is possible because
A. different frequencies of sounds stimulate different regions of the basilar membrane in the cochlear duct. B. different frequencies of sounds make the eardrum vibrate with different amplitudes. C. different frequencies of sounds cause different frequencies of action potentials in neurons in the auditory nerve. D. there are many different types of receptors for sound, each of which responds to a single frequency. E. different frequencies of sounds cause different kinds of action potentials in neurons in the auditory nerve.
In this figure showing an anterior view of the heart, the left atrium is noted by number
A. 1. B. 2. C. 3. D. 4. E. 5.
Which of the following is/are characteristic of fast-twitch oxidative glycolytic fibers?
A. Contraction speed is intermediate (faster than type I but slower than type IIB). B. Fatigue rate is intermediate (faster than type I but slower than type IIB). C. both A and B D. none of the above
Which of the following consists of a somatic motor neuron and all the skeletal muscle fibers it stimulates?
a) sarcomere b) motor unit c) neuromuscular junction d) muscle unit e) multi-unit smooth muscle