Which of the following is NOT part of the respiratory membrane?
A. Simple squamous epithelium of the alveolus and its basement membrane
B. Thick layer of mucus lining the alveolus
C. Interstitial space
D. Pulmonary capillary simple squamous epithelium and its basement membrane
Answer: B
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The hypodermis is characterized by an abundance of which tissue?
A. Statified squamous epithelium B. Smooth muscle C. Nervous tissue D. Adipose tissue E. Dense irregular connective tissue
The molecule that carries an amino acid to the ribosome for incorporation into a protein is ________
A) ATP B) messenger RNA (mRNA) C) ribosomal RNA (rRNA) D) DNA E) transfer RNA (tRNA)
Action potentials in neurons in the inspiratory center of the medulla oblongata result in action potentials in the ________ nerves to the diaphragm, which in turn cause ________ of the muscle, resulting in a/an ________ in the volume of the thoracic cage
A. motor; contraction; decrease B. parasympathetic; contraction; decrease C. sympathetic; contraction; increase D. motor; contraction; increase E. sympathetic; relaxation; increase
Dentists anesthetize a portion of the ________ nerve to stop pain impulses from the teeth.
A. hypoglossal B. facial C. trigeminal D. glossopharyngeal E. abducens