Unlike cytotoxic T cells, natural killer cells do not require antigen to be complexed with class I MHC proteins in order to bind to the antigen.
Answer the following statement true (T) or false (F)
True
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Anabolism includes reactions in which ________
A) carbohydrate utilization increases B) larger molecules are made from smaller ones C) structural proteins are broken down D) None of the listed responses is correct.
The erector spinae muscles collectively are used to maintain posture and to stand erect.
Answer the following statement true (T) or false (F)
Peptide hormones are
A) composed of amino acids. B) produced by the adrenal glands. C) derived from the amino acid tyrosine. D) lipids. E) chemically related to cholesterol.
Which of the following statements regarding the vestibular system is TRUE?
A. Hair cells in the cochlea are involved in the detection of movement and position of the head. B. The utricle and saccule are mainly responsible for detecting angular rotation of the head. C. The vestibular apparatus is principally involved in our ability to detect and interpret sound. D. Deflection of the basilar membrane by fluid moving within the semicircular canals allows us to detect rotational movement of the head. E. Receptors in the utricle and saccule detect changes in the position of the head with respect to gravity.