Everything is properly labelled. No need to make any changes.
Correctly label the following parts of a motor unit. neuromuscular junction spinal cord skeletal muscle fibers...
Muscle movement 1 pt Spinal cord Dorsal The image to the right depicts a motor neuron along with all of the muscle fibers it innervates. What is this called? Cell body of motor neuron Muscle fibers Ventral O Motor axon O Motor unit O Neuromuscular junction Muscle
Sequence of Events at the Neuromuscular Junction The site where a motor neuron excites a skeletal muscle fiber is called the neuromuscular junction. This activity will test your understanding of the sequence of events that occur at the neuromuscular junction. Using the images for help, place in the correct order of occurrence from left to right the events that occur at the neuromuscular junction after the action potential reaches the axon terminal. Termination of Neural Transmission Which of the following...
90) The motor end plate is A) the same as the neuromuscular junction. B) formed by the membrane of enlarged axon terminals, or boutons, that lie on the surface of skeletal muscle cells. C) a special fibrous matrix whose collagen fibers hold the axon terminal in proper position. D) a folded area of muscle cell membrane with ACh receptors clustered at the top of each fold. E) the same as the synaptic cleft.
The innervation ratio of a motor unit can tell us 1)How many skeletal muscle fibers are innervated by a single alpha motor neuron 2) Whether the muscle involved can execute fine motor movements 3) How big the muscle is 4) I and II 5) I and III
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine (neurotransmitter), ligand- channels, motor neuron, synaptic vesicles, and arrival of nerve impulse (AP) Ca2+
Question 47 1 p Where the axon of a motor neuron connects with the muscle fibers neuromuscular junction sarcolemma dendrite sarcomere
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine (neurotransmitter), ligand-channels, motor neuron, synaptic vesicles, and arrival of nerve impulse (AP) Ca2 Ca2+
Choc Muscle fiber nucleus Myofibrilot muscle fiber Figure 10.15. Details of the neuromuscular junction. Label the structures labeled with capital letters. The numbers 1-4 indicate the chain of events that occur at the neuromuscular junction. Put these events in chronological order by placing a l in the blank before the first event, etc. Refer back to Figure 10.15 for information. Acetylcholine diffuses across the synaptic cleft. Nerve impulse reaches the axon terminal. Synaptic vesicles release acetylcholine into the synaptic cleft....
Draw the basic structure of skeletal muscle. Label the following: Epimysium, Fascicle, Muscle Fibers, Perimysium, tendon. 3. Define the following terms: 1. A Band 2. I Band 3. Z disk 4. H zone 5. M line Label the above on the following. Also include "sarcomere." 4. Complete the following chart Striated One or Size & Shape of Voluntary Special Or Non-striated Multiple Nuclei Cell Or Involuntary Features Muscle Type Cardiac Muscle Skeletal Muscle Smooth Muscle
True or False: The striations in skeletal muscle are formed by the arrangement of thick and thin filaments. 2. True or False: In skeletal muscle cells, the sarcoplasmic reticulum is continuous with the sarcolemma. 3. The interval between two Z lines is called a ________________. 4. At a neuromuscular junction, the space between the plasma membrane of the synaptic terminal and the motor end plate is the __________________. 5. An action potential (electric impulse) is transferred from a...