Muscle See Activity WileyPLUS

Muscle See Activity WileyPLUS - Neuromuscular Junctions To...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Neuromuscular Junctions To complete this worksheet, select: Module: Support and Movement Activity: Animations Title: Neuromuscular Junctions . Introduction 1. Voluntary muscles are controlled by the brain. Describe this neural connection. Components of the NMJ 2. Identify each of the following: Motor neuron Synaptic end bulb Sarcolemma Skeletal Muscle Cell Synaptic Cleft 3. a. Define a neuromuscular junction . b. Define a synaptic cleft . c. What is the function of acetylcholine ? Neurotransmission and the NMJ 4. What affect does depolarization have on the motor end plate once action potentials arrive at the synaptic end bulb?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5. What is the affect of increased calcium within the neuron? 6. What affect does acetylcholine have on the sarcolemma? 7. What affect do increased sodium ions have on the muscle cell? Initiation of Contraction 8. Once an action potential goes down a T-tubule, what affect does it have on the terminal cisterns of the sarcoplasmic reticulum? 9. What is the function of the ligand-gates calcium channels? 10. a. Define a sarcomere . b. Identify the actin and myosin filaments. c. What is the role of troponin and tropomyosin? d. What affect does calcium have on troponin and tropomyosin? How does this affect the muscle?
Background image of page 2
Relaxation 11. a. What is the function of acetylcholinesterase
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 9

Muscle See Activity WileyPLUS - Neuromuscular Junctions To...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online