This preview shows page 1. Sign up to view the full content.
Unformatted text preview: ine binds to post-synaptic
receptors on the sarcolemma.
E. Na+ moves across the sarcolemma into
the muscle cell.
F. Breakdown of ACh by AChase.
G. Opening of the voltage-gated sodium
H. Opening of potassium channels.
I. The troponin-tropomyosin complex shifts,
exposing the active sites on actin.
J. Uptake of ATP by the myosin heads.
K. Attachment of actin-myosin crossbridges
and swiveling of the myosin heads.
Score: 9. Value Feedback 0%
100% 0.5/0.5 cell hierarchy
The cell derived from osteoprogenitor cels which produces ossification is the:
Student Response Value A. osteoclast 0% B. osteoblast
D. mesenchyme cell 100%
0% Score: 0/0.5 Feedback 11. internal capsule
Fibers of the _____ carry stimuli from the motor cortex to the corticospinal tracts.
A. corona radiata
B. internal capsule Value
100% C. corpus callosum
D. fornix 0%
0% Score: 12. Feedback 0.5/0.5 Descending tract
A tract with the name vestibulospinal would be:
A. ascending and sensory
B. ascending and motor
C. descending and sensory
D. descending and motor
Score: 13. Value
100% Feedback Value
100% Feedback 0.5/0.5 osteoclasts
Osteoclasts are derived at some point from:
all of the above
E. Answers 1 and 2 only. A.
D. Score: 14. 0.5/0.5 inhibition of heart
The fibers which control the heart at all times in the absence of stress are:
A. cholinergic, nicotinic
B. cholinergic, muscarinic
C. adrenergic, alpha Value
0% D. adrenergic, beta 0% Score: 15. Feedback 0/0.5 The first location of ossification in long bones
The first location of ossification in long bones is the:
A. diaphysis bone collar Value
100% Feedback Student Response
B. 0% C. proximal epiphysis
D. distal epiphysis 0%
0% Score: 18. Value Feedback Value Feedback 0/0.5 pupilary dilation
The receptors which produce pupilary dilation are:
A. cholinergic, nicotinic
B. cholinergic, muscarinic 0%
0% C. adrenergic, alpha
D. adrenergic, beta 100%
0% Score: 19. 0/0.5 disk structure
The intervertebral disks are which type of joint classified according to structure?
Score: 20. Value Feedback 0%
0% 0/0.5 Calcium homeostasis
The primary hormone for calcium homeostasis is:
B. parathyroid hormone Value
100% C. estrogen
D. growth hormone
E. Vitamin D3 0%
0% Score: 0.5/0.5 1
Which of the following cells produces the
myelin sheath in the CNS?
2)Oligodendrocytes Feedback 3)Ependymal cells
Which of the following cells is important in
nerve fiber regeneration?
A structure in the CNS that is analogous with a
Which tract carries pain, temperature, touch
View Full Document
- Fall '12