Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
40 Cards in this Set
- Front
- Back
|
Brain
|
The part of the central nervous system situated within the skull.
|
|
|
Cerebrum
|
area of the brain responsible for voluntary activities of the body.
|
|
|
Corpus Callosum
|
A thick band of nerve fibers that connects the two hemispheres of the brain.
|
|
|
Cerebral Cortex
|
outer layer of the cerebrum, center of thinking and complex behavior
|
|
|
cerebellum
|
region of the brain that coordinates body movements
|
|
|
brain stem
|
connects the brain to spinal cord (medulla oblongata and the pons)
|
|
|
Thalamus
|
gets messages from the sense organs and relays the info to the cerebrum for processing
|
|
|
Hypothalamus
|
recognition of hunger thirst, fatigue, anger and body temerature
|
|
|
Ganglia
|
a mass of nerve tissue
|
|
|
refelx arc
|
the neural path of a reflex
|
|
|
somatic nervous system
|
Division of the PNS that conducts signals from sensory receptors to the CNS and signals from the CNS to skeletal muscles.
|
|
|
autonomic nervous system
|
The portion of the nervous system that regulates involuntary body functions, including those of the heart and intestine. Controls blood flow, digestion and temperature regulation.
|
|
|
sympathetic nervous system
|
mobilizes energy during times of stress
|
|
|
parasympathetic nervous system
|
the part of the autonomic nervous system that is stimulated during times of relaxation
|
|
|
senses
|
Senses are the physiological methods of perception
|
|
|
thermoreceptors
|
A sensory receptor that responds to heat and cold.
|
|
|
mechanoreceptors
|
A specialized sensory end organ that responds to mechanical stimuli such as tension, pressure, or displacement.
|
|
|
chemoreceptors
|
responds to chemical stimuli- smell or taste
|
|
|
photoreceptors
|
a nerve ending, cell, or group of cells specialized to sense or receive light.
|
|
|
vision
|
eyesight
|
|
|
eyes
|
An organ of vision
|
|
|
Iris
|
The round pigmented contractile membrane of the eye that is perforated in the center by the pupil
|
|
|
Circulatory system is composed of
|
consists of the heart, a series of bloodvessels and the blood that flows through them
|
|
|
circulatory system
|
circulates blood and lymph through the body
|
|
|
pericardium
|
The membranous sac filled with serous fluid that encloses the heart and the roots of the aorta and other large blood vessels.
|
|
|
Myocardium
|
muscular tissue of the heart
|
|
|
septum
|
internal wall between the segments of an anelid's body
|
|
|
systematic circulation
|
pathway in which left side fo the heart pumps blood to all the body except the lungs
|
|
|
valves
|
a flap of connective tissue between an atrium and a ventricle, or in a vein, that prevents backflow of blood
|
|
|
heartbeat
|
A single complete pulsation of the heart.
|
|
|
pacemaker
|
small group of cardiac muscle cells in the right atrium that set the pace for the heart as a whole
|
|
|
atrioventricular node
|
Conducting tissue at the bottom of the right atrium in which electrical impulses must pass to reach the ventricles.
|
|
|
blood vessels
|
aorta, arteries, capillaries, veins
|
|
|
blood pressure
|
The force of the blood against the walls of the artery.
|
|
|
systolic pressure
|
the pressure of blood inside arteries when the heart contracts.
|
|
|
diastolic pressure
|
the pressure of blood inside arteries when the heart is at rest
|
|
|
high blood pressure
|
the force of blood pushing against blood vessel walls
|
|
|
heart attack
|
damage to the heart muscle due to insufficient blood supply
|
|
|
stroke
|
rupture of a blood vessel leads to oxygen lack in the brain
|
|
|
heart
|
pumps blood through the blood vessels
|
