The Nervous System
The Brain
The Brain Cont'
Senses
Senses Cont'
100
What two parts make up the central nervous system?
Brain and spinal cord
100
The part of the brain that functions to coordinate voluntary muscular movements is the _________________.
Cerebrum
100
The meninges consist of the _______________, _________________, and the _________________.
dura mater, arachnoid mater, pia mater
100
Where are the special senses found?
In the head
100
This part of the eyes main function is protection. It also acts as an attachment for muscles.
sclera
200
What are the three general functions of the nervous system?
Integrative, motor, and sensory
200
What are the two parts of the diencephalon?
thalamus and hypothalamus
200
Cerebrospinal fluid is produced by the ____________ ____________ and it functions to______________________________.
choroid plexuses, protect the brain from blows to the skull
200
What is sensory adaptation?
The ability to ignore unimportant stimuli
200
What is the main function of the iris?
It is made up of smooth muscles that controls the size of the pupil
300
Schwann cells are found only in the ______________ and are composed of ___________________.
Peripheral Nervous System; Myelin
300
The primary motor areas of the brain are located in the ___________ lobe.
frontal lobe
300
What is a spinal tap used for?
to measure the pressure of the cerebrospinal fluid
300
What is the difference between static and dynamic equilibrium?
Static equilibrium= balance when still Dynamic equilibrium= balance when in motion
300
What is the main function of the retina?
contains the visual receptors (photoreceptors)
400
What is the correct order of a reflex arc (5 parts)?
receptor, sensory neuron, interneuron, motor neuron, effector
400
The part of the brainstem that inculdes the cardiac and vasomotor centers is the _________________________.
medulla oblongata
400
What are three functions of the hypothalamus?
regulation of body temperature, control of hunger, producition of hormones involved in growth
400
How do the vibrations travel through the middle ear?
Malleus ---> incus ---->stapes ----> oval window
400
What is the function of the choroid coat?
To provide a blood supply and absorbs extra light in the eye
500
What is the process of transmitting a nerve impulse from one neuron to another?
the nerve impulse stimulates axon terminals to release neurotransmitter into the synapse
500
Describe what happens due to sensory nerve fibers crossing over in the brain.
The right hemisphere of the cerebrum receives sensory impulses from the left side of the body and vice versa.
500
What are three functions of cerebrospinal fluid?
Provides nutrition, pathway to the blood for waste, and absorbs forces that otherwise would damage the brain and spinal cord.
500
This is a mucous membrane that lines the inner surface of the eyelids and anterior surface of the eyeball.
conjunctiva
500
This part of the retina becomes part of the optic nerve. Because there are no photoreceptors here it is also known as the blind spot.
optic disc
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