Know the function of the nervous system
Sensory, integrative-analyzing, sensory input and making decisions
about response. *Only Sensory and integrative functions
The peripheral nervous system can be divided into:
Autonomic and Somatic nervous system
The motor portion of the autonomic nervous system can be divided into:
Both Sympathetic and parasympathetic division
This has the property of electrical excitability
Skeletal muscle cells, neurons, and cardiac muscle cells.
This is the site of protein synthesis in a neuron
The Nissl Body, which contains rough ER
Nerve fiber refers to:
The axon and myelin sheath
This type of neuron has one main dendrite and one main axon.
Bipolar neurons
When do Schwann cells begin to form myelin sheaths around axons
Fetal Development
This contains neuronal cell bodies, dendrites, unmyelinated axons,
axon terminals and neruoglia.
Gray matter
Plasticity means
The quality of being able to be made into different shapes, molded
Saltatory conduction is what
This occurs only in myelinated axons. The process by which if
insulating myelin is present on an axon then the nerve impulses that
is conducted will "jump" from gap to gap in the myelin layer.
Which axons have the largest diameter
Fibers
Which of the three spinal meninges is the most superficial
Dura Mater
What meningial space contains cerebrospinal fuid
Subarachnoid space
Denticulate ligaments are thickenings of:
Pia mater
This spinal cord enlargement results from nervous input from the
lower extremities.
Lumbar Enlargement
This part of the spinal cord contains only sensory axons that conduct
nerve impulses from sensory receptors in the skin, muscles and
internal organs into the CNS.
Posterior Root
Which layer is found surrounding the entire spinal nerve?
Epineurium
Which type of axons contain endoneurium?
Both myelinated and unmyelinated
Use the following image to answer these questions:
Where is the posterior median sulcus?
Where is the lateral white column?
Where is the anterior gray horn?
Where is the anterior white column?
A
D
H
I
The brain and spinal cord develop from ______ arranged in a tubular
structure called the neural tube.
Ectoderm
This gives rise to the midbrain and aqueduct of the midbrain.
The mesencephalon
Know the major parts of the brain
Brain stem, cerebellum, cerebrum, diencephalon (thalamus,
hypothalamus, and epithalamus
This consists of the medulla oblongata, pons, and midbrain
Brain stem
This consists of the thalamus, hypothalamus, and epithalamus
Diencephalon
Which meninge has two layers?
Cranial dura mater
This separates the two hemispheres of the cerebrum
Longitudinal fissure or falx cerebri
This protects the brain by preventing passage of harmful substances
and pathogens
Blood brain barrier
Which ventricle is located in each hemisphere of the cerebrum
Lateral ventricle
These are fingerlike projections that reabsorb CSF
Arachnoid villi
This is a narrow cavity along the midline superior to the
hypothalamus and between the right and left halves of the thalamus.
Third ventricle
Where is the pineal gland found
Epithalamus
Olfactory receptors are found
Only in the superior portion of the nasal cavity
These cells provide for the sense of smell
Olfactory cells
These provide physical support, nourishment and electrical insulation
for olfactory receptors.
Supporting cells
What is adaptation
Generator potential or receptor potential decreases in amplitude
during a maintained, constant stimulus.Decreasing sensitivity
Know where the olfactory tract projects
Goes to the limbic region controlled by the lymbic system
These cells provide for the sense of taste
Gustatory
Taste buds are found
Superior surface of the tongue, epiglottis, pharynx, soft palate
Which papillae do not contain taste buds?
Filiform
Which nerves serves in a gustatory function?
Vagus
Know the accessory structures of the eye
NOT retina. Eyelids, eyelashes, lacrimal apparatus, eyebrows
What is the space between the upper and lower eyelids?
Papebral fissure
This is a thin layer that protects the anterior surface of the eyeball
Conjunctiva
What is the correct order in the flow of tears? 6 of them
Lacrimal gland, extratory lacrimal ducts, superior/inferior lacrimal
canals, lacrimal sac, then nasal lacrimal duct, then nasal cavity
How many extrinsic eye muscles are responsible for moving the eye?
6
This is the transparent coat that covers the iris
Cornea