Nervous & Endocrine Systems Flashcards
(24 cards)
Neurons are
The cells of the nervous system which conduct electrical signals
A ganglion is
cluster of cell body’s outside of the CNS
A nerve is
cluster of axons outside of the CNS
A reflex is
a quick involuntary response to a stimulus
The Babinski reflex is
an abnormal reflex in which the toes extend rather than flex in response to the stoking of the plantar surface of the foot
name the path of sciatic nerve
common peroneal nerve superficial peroneal nerve deep peroneal nerve tibial nerve medial plantar nerver lateral plantar nerve
The Retina consist of
light sensitive neurons located at the back of the eye
Rods are
the neurons in the retina which allow us to see in dim light but do not register color
what is A negative feed back loop
tends to maintain a steady state of equilibrium in the body
what is A positive feed back loop
tends to promote growth and transformation
Oxtocin is
he piturarty hormone that causes lactation and contraction of the uterus
Follicle and Luteinizing are
pituitary hormones that regulate the menstrual cycle
Thyroxin is
the hormone that consists of amino acid tyosine bonded to four atoms of iodine
Adrenalie is
the adrenal medulla hormone that causes rapid heartbeat and respiration
Cortisol is
a stress hormone produced by the adrenal cortex. It has a powerful anti- inflammatory effect and also causes breakdown of protein in the muscle and connective tissue
The islets of Langerhans contain
alpha cells and beta cells
The alpa cells of the pancreas produces the hormone called
glucagon
glucagon does what
increases blood glucose by stimulating the breakdown of glycogen in the liver
The bata cells of the pancreas produce
the hormone called insulin
insulin does what
decreases blood glucose by causing the body to absorb glucose
Diabetes mellitus is
a condition in which blood glucose is too high
Estrogen is
the ovarian hormone that causes the development of the female
Proesterone is
the ovarian hormone that prepares the uterus to receive the fertilized egg and allows the uterus to maintain pregnancy
Testosterone is
the hormone that causes the development of the male characteristics
