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

Anatomy & Physiology

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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

Anatomy & Physiology

Histology is the study of the history of anatomy and physiology.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

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

Anatomy & Physiology

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

Anatomy & Physiology