Type I Muscle Fibers

Topic: Physiology

Created on Sunday, November 9 2008 by jdmiles

Last modified on Sunday, November 9 2008.

 
        A) They comprise the "white meat" in your Thanksgiving turkey
 
        B) They have a lower capacity for oxidative metabolism than type II fibers
 
        C) They have about the same capacity for oxidative metabolism as type II fibers
 
        D) They are associated with smaller motor neurons than type II fibers
 
        E) They fatigue rapidly
 

 

	= Go back to the top of the page.
	= Reload a different version of this question ().
	= Load a random question from the database.
	= Use this question as a template to create a totally NEW question.
	= Enter detailed rating for this question!
	= How users like you have rated this question.

This question was created on November 09, 2008 by jdmiles.
This question was last modified on November 09, 2008.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

---

A) they comprise the "white meat" in your Thanksgiving turkey

This answer is incorrect.

Type I muscle fibers are redder in color, whereas type II muscle fibers are whiter in color. This corresponds somewhat to the "white meat" and "dark meat" seen in poultry.
Reload this question to learn more stuff about muscle fiber types.  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

B) they have a lower capacity for oxidative metabolism than type II fibers

This answer is incorrect.

Type II muscle fibers have a higher capacity for oxidative metabolism than type II fibers, which have a higher capacity for anaerobic metabolism.

Reload this question to learn more stuff about muscle fiber types.  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

C) they have about the same capacity for oxidative metabolism as type II fibers

This answer is incorrect.

Type II muscle fibers have a higher capacity for oxidative metabolism than type II fibers, which have a higher capacity for anaerobic metabolism.

Reload this question to learn more stuff about muscle fiber types.  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

D) they are associated with smaller motor neurons than type II fibers

This answer is correct.

Type I fibers are associated with smaller motor neurons. Type II fibers are associated with larger motor neurons.
Reload this question to learn more stuff about muscle fiber types.  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

E) they fatigue rapidly

This answer is incorrect.

Type I fibers are slow to fatigue.
Reload this question to learn more stuff about muscle fiber types.  (See References)

Please log in if you want to rate questions.

 

 

 

 

References:

1. Preston, D.C., and Shapiro, B.E. (2005). Electromyography and Neuromuscular Disorders: Clinical-Electrophysiologic Correlations, 2nd Edition. Elsevier, Philadelphia. (ISBN:075067492X)	Advertising:
2. Nizar Souayah, Sami Khella. Neurology: McGraw-Hill specialty board review: examination & board review. New York : McGraw-Hill, Medical Pub. Division, c2005. (ISBN:0071378391)	Advertising:
3. Prayson, R.A., and Goldblum, J.R. (Eds.) (2005). Neuropathology. Elsevier Churchill Livingstone, Philadelphia. (ISBN:0443066582)	Advertising:

Please log in if you want to rate questions.

 

FrontalCortex.com -- Neurology Review Questions -- Neurology Boards -- Board Review -- Residency Inservice Training Exam -- RITE Exam Review
physiology
Type I Muscle Fibers
Question ID: 110908126
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 11/09/2008
Modified: 11/09/2008
Estimated Permutations: 5140800