Unformatted text preview: osing the active sites on actin.
J. Uptake of ATP by the myosin heads.
K. Attachment of actin-myosin crossbridges 0%
and swiveling of the myosin heads.
Score: 13. Feedback 0/0.5 Adipose
Which tissue is important in being an insulator and shock absorber for the organs?
A. Elastic connective tissue.
B. Elastic cartilage.
C. Adipose tissue
D. Areolar tissue
Score: 0/0.5 Value
0% Feedback 14. smooth muscle
The type of smooth muscle in which an impulse passes through a large number of cells which subsequently contract in synchrony is:
A. single unit smooth muscle
B. multi-unit smooth muscle
C. sphincter muscle
Score: 15. Value
0% Feedback 0/0.5 Impulse reaches the axon terminus
What is the first thing that happens when an impulse reaches the axon terminus of a neuromuscular junction? A.
K. Student Response
Calcium ions enter the axon
Calcium ions enter the sarcoplasm from the 0%
Acetylcholine is released into the synaptic 0%
cleft by exocytosis.
Acetylcholine binds to post-synaptic
receptors on the sarcolemma.
Na+ moves across the sarcolemma into the 0%
Opening of the chemically-gated sodium 0%
Opening of the voltage-gated sodium
Opening of potassium channels.
Binding of calcium ions to Troponin C.
Uptake of ATP by the myosin heads.
Attachment of actin-myosin crossbridges 0%
and swiveling of the myosin heads. Score:
16. Feedback 0/0.5 excitation of heart
Receptors which mediate excitation of the heart in response to stress are:
A. cholinergic, nicotinic
B. cholinergic, muscarinic
C. adrenergic, alpha
D. adrenergic, beta
Score: 17. Value
100% Feedback 0/0.5 multiple sclerosis
A demyelination disorder of the CNS which results in impaired and disrupted conduction along axons is:
C. multiple sclerosis Value
100% Feedback Student Response
D. Paget's disease
0% Feedback 0/0.5 periosteum
Once completely hardened, osteoprogenitor cells must come from the _____ for bone repair.
A. Sharpey's fibers
B. red marrow
C. yellow marrow
Score: 19. Value
100% Feedback 0/0.5 femur
Match parts with letters. A lesser trochanter B head of femur C medial epicondyle D medial condyle E greater trochanter F intercondylar notch G anatomical neck H linea aspera I patellar articular surface
20. 0/0.5 haversian systems
Spongy bone lacks: Response
not answered Value
% Student Response
C. blood vessels
D. Haversian systems
100% Feedback 0/0.5 View Attempt 4 of unlimited
Time spent: Alternate Substitute Quiz
December 3, 2008 3:37 PM
December 3, 2008 4:17...
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This note was uploaded on 01/29/2013 for the course BIOL 239 taught by Professor Swan during the Fall '12 term at New Mexico.
- Fall '12