Fundamentals Of The Nervous System
Fundamental of the Nervous System
- 1.Which one is not a function of the nervous system?
- A.
Sensory Input
- B.
Sensory division
- C.
Motor Output
- D.
Interperets changes, integrates, and makes decisions
- 2.The centeral nervous system is classified in two groups, what are they?
- A.
Motor Nervous system
- B.
Peripheral nervous System
- C.
Centeral Nervous System
- D.
Sensory Nervous System
- 3.The two divisions of peripheral nervous systerm are___________ and ____________.
- A.
Centeral nervous system
- B.
Somatic nervous system
- C.
Motor nervous sytstem
- D.
Automonomic nervous system
- 4.Does the somatic nervous system involve voluntary or involuntary nervous systems?
- A.
Voluntary
- B.
Involuntary
- 5.Does the autonomic nervous system has voluntary or involuntary nervous systems?
- A.
Involuntary
- B.
Voluntary
- 6.Sympathetic is when your heart rate and blood pressure increases, along with respiratory reate and your pupils dilates and causes sweating, associated with flight or fight response.
- A.
True
- B.
Falso
- 7.Parasympathetic reverses the sympathectic, slows down heart rate and resp. rate and sweating.
- A.
True
- B.
False
- 8.What is Histology?
- A.
The study of history.
- B.
The study of cells.
- C.
The study of tissues.
- 9.What are neurons?
- A.
Cells that cause and spread cancer.
- B.
Specialized cells that carry impulses, these cells don't usually divide.
- C.
Cells that carry nutrients to the brain.
- 10.Star Shaped cells that make up 1/2 the volume of the brain. They are webliked projections from relatively tight junctions around brains capillaries, resulting in a structure/designed commonly called BBB.
- A.
BBB, Blood Brain Barrier
- B.
Astrocytes
- C.
Microglia
- 11.Differential rates of molecule passage into the brain, due to size and chemical makeup, This acts to stabilize the chemicals enviroment of the brain, in other areas of the body there is fluxunation of chemical compounds
- A.
BBB, Blood Brain Barrier
- B.
Astrocytes
- C.
Microglia
- 12.What can't pass through the BBB?
- A.
Glucose and O2
- B.
Essential amino acids
- C.
Some electrolytes (na, Cl, K)
- D.
Various Fat soluble moleculs, including alcohol, nicotine, certain drugs, and anesthetics
- E.
Most antibiotics/ medications, urea, and certain toxins
- 13.BBB is poorly developed in infants hence potential for damage of brain disorders.
- A.
True
- B.
False
- 14.The BBB actually protects brain tumors from chemotherapy.
- A.
True
- B.
False
- 15.Small cells, long processes, modified white blood cells, usually stationary but may migrate to site of injury and engulf bacteria, also called brain macrophages
- A.
Ependymal
- B.
Oligodendrocytes
- C.
Microglia
- 16.Epithelial cells that line ventricles (cavities) of brain and central canal of spinal cord; these cells play an active role in production of cerebrospinal fluid, cilia help cirulate.
- A.
Ependymal
- B.
Microglia
- C.
Oligodendrocytes
- 17.Smaller cells, fewer processes, similar to astrocytes, lends support by forming protective rows between neurons in brain and spinal cordl; also produce (insulating) coverings around ending of neurons of CNS called myelin sheaths.
- A.
Ependymal
- B.
Oligodendrocytes
- C.
Microglia
- 18.Cells that are similar to oligedendrocytes except only found in the PNS are called
- A.
Neurons
- B.
Dendrites
- C.
Schwann
- D.
Axons
- 19.Function in impulse conduction- also called nerve cells, typically large cells.
- A.
Neurons
- B.
Structures
- C.
Axons
- D.
Schwann
- 20.Basic characteristics of a neuron is long lived, can not reproduce themselves, and very high metabolic activity and can not survice longer then about 7 minutes without oxygen.
- A.
True
- B.
False
- 21.Structure of a neuron consist of ___________and ________________.
- A.
Schwan cell and cell body
- B.
Neuron processes, nerve fibers
- C.
Myelin sheath, nerve fibers, and neurilemma
- D.
All of the above
- 22.A single extension of cell body that carries impulses away from cell body, also form junctions with other structures including muscles, glands, and other neurons can be up to 3 ft in length
- A.
Axon
- B.
Dendrites
- C.
None of the above
- 23.Highly branched, extensions of 1 body that carry impulses toward the cell body, and serve as receptor sites for impulses from other neurons.
- A.
Axon
- B.
Dendrites
- C.
All of the above
- 24.Schawann cell is responsible for the development of what?
- A.
Myelin sheath
- B.
Nerve fibers
- C.
Cell membranes
- D.
Neurilemma
- 25.Cell membrane of the schwann cell -function- to assist regeneration of injured axons
- A.
Neurilemma
- B.
Myelin sheath
- C.
Schwann cell
- D.
Nerve fiber
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