The end is near
Which effect does the parasympathetic nervous system have?
Typical parasympathetic responses include salivation, digestion, defecation, and urination as well as reduced heart and respiration rates.
Which muscle originates on the spinous processes of T11–L2, inserts on ribs 9 to 12, and depresses the ribs during exhalation?
Serratus posterior inferior
In the adult, the spinal cord extends from the medulla oblongata to the:
upper border of vertebra L2
Which muscle is called the hip hiker muscle?
Quadratus lumborum
Which condition involves pain radiating down the leg that can be due to piriformis syndrome?
Sciatica
Which muscle increases the thoracic cavity volume during inhalation and increases intraabdominal pressure?
Diaphragm
Which muscle originates on the iliac fossa?
Iliacus
Which term refers to fatty coverings around neurons that insulates and increases the conduction rate of the impulse?
Myelin
DD
The brain requires a large percentage of the body’s total blood flow because:
it does not store glucose, the brains main energy source
Which term means chemical messengers that transfer an impulse from a neuron to another neuron, muscle or gland?
Neurotransmitters
DD
Which part of the spinal cord do afferent impulses travel on?
Ascending Tracts
DD
Which structure does 75% of the fibers of gluteus maximus insert into?
Iliotibial band
What are the impulse-conducting cells of the nervous system called?
Neurons
The type of neuroglia that wrap around capillaries in the blood-brain barrier are the:
astrocytes
The function of proprioceptors is to:
respond to position and movement of the body
The spinal cord passes through the:
vertebral foramen
Which muscle originates on the posterior sacrum, the posterior coccyx, and the posterior iliac crest?
Gluteus maximus
Which structures receive stimuli and initiate nerve impulse transmission?
Dendrites
The main relay center for conducting information between the spinal cord and the cerebrum is:
thalamus
DD
The conscious awareness and interpretation of sensations is called:
perception
What is the purpose of the blood-brain barrier?
Prevents passage of some molecules into the central nervous system
Spinal nerves emerge from the vertebral column via:
intervertebral foramina
DD
Which muscle is synergistic to piriformis?
Gluteus maximus
Which muscle is a synergist to iliopsoas?
Rectus femoris
Which neurotransmitter is vital for muscle contraction?
Acetylcholine