Compared to a young adult, an older individual has ________ skin
A. thicker
B. thinner
B
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The subcutaneous layer consists of
A) epithelial and adipose tissues. B) areolar and adipose tissues. C) dense connective and loose connective tissues. D) epithelium and loose connective tissues. E) skeletal muscles and adipose tissue.
Matching
A) Sodium ions B) Acetylcholinesterase C) Calcium ions D) Acetylcholine E) Creatine phosphate 27) The final chemical messenger and "trigger" for muscle contraction. It binds to troponin. 28) A neurotransmitter released at motor end plates by the axon terminals. 29) It diffuses across the cell membrane resulting in depolarization. 30) Activates synaptic vesicles in axon terminals to fuse with plasma membrane of axon terminal. 31) Used to convert ADP to ATP by transfer of a high-energy phosphate group. A reserve high-energy compound. 32) Breaks down ACh into its building blocks, rendering it ineffective.
Where are indoleamines produced?
a. pineal gland b. thyroids c. adrenal medulla d. pituitary e. hypothalamus
Parietal cells in the lining of the stomach secrete
A) regulatory hormones. B) pepsinogen. C) HCl and intrinsic factor. D) mucus. E) bicarbonate ions.