This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Muscle contraction occurs when the myosin cross bridges row along the length of the ______ ... (Read 79 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
on: Jun 22, 2018
Muscle contraction occurs when the myosin cross bridges row along the length of the ______ filaments.
 
  a. myosin
  b. actin
  c. intrafusal
  d. extrafusal
  e. myofibril

Question 2

The presence of dark stripes in skeletal muscles is due to
 
  a. the presence of blood vessels within the muscle fibers.
  b. thickened membranes at the neuromuscular junctions.
  c. variations in myelin coating of the muscle fibers.
  d. overlapping segments of actin and myosin filaments.
  e. alternating motor units.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

momolu

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: b. actin

Answer to Question 2

Answer: d. overlapping segments of actin and myosin filaments.


moongchi

  • Member
  • Posts: 516
Reply 2 on: Jun 22, 2018
Excellent

shailee

  • Member
  • Posts: 392
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Muscle male/female Muscle male/female
Liver lobule cross section Liver lobule cross section
A cross section of a lymph node. A cross section of a lymph node.
Diesel combustion occurs when fuel is injected into the hot, highly compressed air in the cylinder. Diesel combustion occurs when fuel is injected into the hot, highly compressed air in the cylinder.
Finding the length given total distance and distance longer than other point Finding the length given total distance and distance longer than other point
Artificial cross-fertilization of pea plants Artificial cross-fertilization of pea plants
Video: Neuron structure and function - sensory neurons, association neurons & motor neurons

For a complete list of videos, visit our video library