The hormones and neurotransmitters released by the endocrine and nervous systems are chemical substances referred to as ________.
Fill in the blank(s) with the appropriate word(s).
ligands
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Which muscle does not have a proximal attachment on the ischial tuberosity?
A. Biceps femoris B. Quadratus femoris C. Adductor longus D. Semitendinosus E. Semimembranosus
Histology is the study of the history of anatomy and physiology.
Answer the following statement true (T) or false (F)
Each of the following factors would increase the probability of skeletal muscles contracting, except one. Identify the exception.
A) increased permeability of the muscle membrane to calcium ions B) increased amounts of acetylcholine in the synaptic cleft C) increased permeability of the muscle membrane to sodium ion D) increased permeability of the muscle membrane to potassium ion E) increased numbers of acetylcholine receptors at the motor end plate
Where are the collateral (prevertebral) ganglia located?
A. Near arterial branches of the abdominal aorta B. Just lateral to the vertebral column C. In the walls of organs to be innervated D. In the brain E. Posterior to the vertebral column