Anatomy Final Exam Review

Anatomy Final Exam Review

Assessment

Flashcard

Science

12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an action potential?

Back

An action potential is an electrical message that travels through neurons, allowing communication between nerve cells.

2.

FLASHCARD QUESTION

Front

What does the release of acetylcholine trigger in skeletal muscles?

Back

The release of acetylcholine triggers skeletal muscles to contract.

3.

FLASHCARD QUESTION

Front

What type of neurons carry action potentials from the brain to skeletal muscle fibers?

Back

Motor neurons carry action potentials from the brain to the skeletal muscle fibers, triggering them to contract.

4.

FLASHCARD QUESTION

Front

What happens in Step 8 of the Neuromuscular Junction?

Back

The sarcoplasmic reticulum is stimulated by the action potential and releases Ca2+.

5.

FLASHCARD QUESTION

Front

What is the role of tropomyosin in muscle contraction?

Back

Tropomyosin is a regulatory protein that is rod-like and runs the length of actin, helping to regulate muscle contraction.

6.

FLASHCARD QUESTION

Front

What is the function of neurotransmitters in the nervous system?

Back

Neurotransmitters are chemicals that transmit signals across a synapse from one neuron to another, facilitating communication in the nervous system.

7.

FLASHCARD QUESTION

Front

What is the role of calcium ions (Ca2+) in muscle contraction?

Back

Calcium ions (Ca2+) are released from the sarcoplasmic reticulum and bind to troponin, causing tropomyosin to move and expose binding sites on actin for myosin.

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