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

Author Question: Which layer forms the fascicles in skeletal muscle? a. Tendon sheath b. Endomysium c. Epimysium ... (Read 74 times)

deesands

  • Hero Member
  • *****
  • Posts: 514
on: Jun 25, 2018
Which layer forms the fascicles in skeletal muscle?
 
  a. Tendon sheath
  b. Endomysium
  c. Epimysium
  d. Perimysium

Question 2

Which ions directly control the contraction of muscles?
 
  a. Sodium
  b. Potassium
  c. Calcium
  d. Magnesium


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jody Vaughn

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: D
The perimysium further subdivides the muscle fibers into bundles of connective tissue called fas-cicles. None of the other options forms fascicles.

Answer to Question 2

ANS: C
Contraction begins as the calcium ions combine with troponin, a reaction that overcomes the in-hibitory function of the troponin-tropomyosin system. The release of intracellular calcium ions is the critical link between a nerve impulse (electrical excitation) and muscle contraction. The criti-cal link that allows for the contraction of muscles is not reliant upon sodium, potassium, or mag-nesium.


deesands

  • Member
  • Posts: 514
Reply 2 on: Jun 25, 2018
:D TYSM

sailorcrescent

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

GI endoscopy. (a) Similar to other forms of GI endoscopy, laparoscopy involves the insertion of a sp GI endoscopy. (a) Similar to other forms of GI endoscopy, laparoscopy involves the insertion of a sp
Motor neuron showing the axon, dendrite, and myelin sheath. Motor neuron showing the axon, dendrite, and myelin sheath.
The skeletal system. The skeletal system.
Skeletal Structure of a Lamb Skeletal Structure of a Lamb
rabbit skeletal rabbit skeletal
How urine forms. How urine forms.
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

For a complete list of videos, visit our video library