The Autonomic Nervous System or ANS is a major mechanism for neural control of physiologic functions. The autonomic nervous system (ANS) consists of portions of the central and peripheral nervous systems and functions without conscious control. Discussions of ANS usually take one of three perspectives: An anatomic

Neuroendocrine Positive-Feedback Mechanism Controlling Labor

During the latter stages of pregnancy, the blood concentration of estrogens become increasingly greater than that of progesterone, as noted earlier. Whereas progesterone inhibits uterine contractions, estrogens promote them. Therefore, there is an increasing tendency toward the onset of uterine contractions as the pregnancy approaches full term.

Disorders of The Nervous System – Inflammatory and Non Inflammatory

Inflammatory Disorders Meningitis (men-in-ji ‘-tis) results from a bacterial, fungal, or viral infection of the meninges. Bacterial meningitis cases are the most serious, with about 20% being fatal. If the brain is also involved, the disease is called encephalitis. Some viruses causing encephalitis are transmitted by bites

Cerebrospinal Fluid

CSF = cerebrospinal fluid It is quite similar to blood plasma and interstitial fluid. It’s present in the ventricular system inside the CNS and in the subarachnoid space surrounding the CNS. It gives a protective cushion between the CNS and the neighboring bones and bathes both the

The Structures, Locations, and Functions of the Sensory Receptors

Sensory receptors for the general senses are widely distributed in the skin, muscles, tendons, ligaments, and visceral organs. Temperature Two types of thermoreceptors are located in the skin. Warm receptors are free nerve endings, which are sensory neuron dendrites, in the deep dermis that are most sensitive