Neuromuscular Junction & Sliding Filament Theory

The gap between a neuron and a muscle cell: (#4 in the diagram)

• synaptic cleft
• sarcolemma
• vesicle
• Ca²⁺ ion

A bundle of fascicles best describes a

• muscle fiber
• muscle tissue
• myofibril
• tendon

Tags

NGSS.HS-LS1-2

What layer of connective tissue covers the muscle fiber?

• epimysium
• endomysium
• perimysium

The neurotransmitter stored in the axon terminal identified as #3

• Acetylcholine
• Protein Channel
• Calcium Ion (Ca²⁺)
• Syanptic Cleft

The organelle that stores ACh in the axon is identified as #4

• Motor Neuron
• Axon Terminal of Motor Neuron
• Sarcolemma
•  Vesicle

The specialized part of the cell membrane of the muscle fiber identified as #5

• Sodium ion (Na⁺)

• Axon Terminal of Motor Neuron

• motor end plate

• Vesicle

The organelle containing actin and myosin identified as #9

• ACh
• Sarcolemma
• Vesicle
• Myofibril

This is a neurotransmitter used to create a muscle impulse

• Acetylcholine
• Calcium Ions (Ca²⁺)
• Sodium Ions (Na⁺)
• Protein Channels

Muscles are attached to bones by _____.

• Ligaments
• Tendons
• Cartilage
• Axons

The organelle that contains actin and myosin.

• Tendon
• myofilament
• myofibril
• Fiber