Parts of the Brain
What part of the brain is responsible for balance and coordination?
Cerebellum
What are the two main divisions of the nervous system?
Central Nervous System and Peripheral Nervous System
What is the basic functional unit of the nervous system?
Neuron
What term is the anterior portion of the choroid, which gives the eye its color?
Iris
True or False: The lacrimal glands of the eyes produces tears.
True
Which part of the brain controls breathing and heart rate?
Medulla oblongata
What type of nerves carry signals away from the CNS?
Motor (efferent) nerves
What type of neuron carries impulses away from the CNS?
Motor (efferent) nerves
What sense lacks the presence of hair cell receptors that send impulses to the brain?
Vision/sight
What are the three auditory ossicles?
Malleus, incus, and stapes
What are some of the functions of the frontal lobe?
Decision making and problem solving
Which part of the nervous system controls involuntary actions?
What is an involuntary response to a stimulus?
A reflex
What does olfactory refer to?
Smell
Names of the photoreceptor cells in the retina that detect degrees of light, colors, and grayscale
Rods and cones
What are the four lobes of the brain?
Frontal, parietal, temporal, occipital
Name the division of the autonomic nervous system responsible for the fight or flight response.
Sympathetic nervous system
What is the myelin sheath, and what is its function?
An insulating layer that speeds up impulse transmissioin
Pathway of light through the structure of the eye
cornea —> aqueous humor —> pupil —> lens —> vitreous humor —> retina
What are the five basic tastes?
Sweet, salty, sour, bitter, and umami
What are the four protection features for the brain and spinal cord?
- blood brain barrier
- skull/vertebrae
- meninges
- cerebrospinal fluid
What division of the PNS is responsible for voluntary movements?
Somatic Nervous System
What is the pathway of a reflex arc?
sensory neuron —> spinal cord —> motor neuron
What area of the brain is involved in emotions and behavior that is connected to smell?
Limbic System
What is the stimuli for each of the four senses?
Vision: light
Hearing: sound
Taste & Smell: chemical