Powerful contractions that occur a few times each day in the colon are called
A) mass movements.
B) segmentation.
C) phasic contractions.
D) peristalsis.
E) tonic contractions.
A) mass movements.
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A) Keratinocytes B) Keratin C) Cornified keratinocytes D) Dendritic cells E) Merkel disc 8) The most abundant cells of the epidermis. 9) The protein found in the epidermis that is responsible for toughening the skin. 10) Cells plus a disc-like sensory nerve ending that functions as a sensory receptor for touch. 11) Skin macrophages that help activate the immune system. 12) Cell remnants of the stratum corneum.
Interstitial cells produce
A) sperm. B) FSH. C) nutrients. D) testosterone. E) androgen-inhibiting protein.
How does the nephron and associated hormones respond to low blood calcium levels?
What will be an ideal response?
________ results from a severe hyposecretion of thyroid hormones in adults.
A. Cretinism B. Graves disease C. Myxedema D. Simple goiter