Exam 3 Review Flashcard

Front

What is the role of troponin in skeletal muscle?

Back

Troponin is a protein that binds calcium ions and regulates muscle contraction by allowing myosin to bind to actin.

Front

What is the role of calmodulin in smooth muscle?

Back

Calmodulin is a calcium-binding protein that activates myosin light chain kinase, leading to muscle contraction in smooth muscle.

Front

What is the correct order of sarcomere contraction?

Back

1. Cocking 2. Attachment 3. Power Stroke 4. Reattachment

Front

What is the function of the cerebral aqueduct?

Back

The cerebral aqueduct is a channel that connects the third and fourth ventricles of the brain, allowing cerebrospinal fluid (CSF) to flow.

Front

What is the significance of the inferior colliculus?

Back

The inferior colliculus is involved in auditory processing and reflexive responses to sound.

Front

What does the longitudinal fissure separate?

Back

The longitudinal fissure separates the two cerebral hemispheres of the brain.

Front

What is the function of cerebrospinal fluid (CSF)?

Back

CSF cushions the brain, removes waste, and provides nutrients.

Front

What is the difference between skeletal and smooth muscle contraction mechanisms?

Back

Skeletal muscle contraction is regulated by troponin and tropomyosin, while smooth muscle contraction is regulated by calmodulin and myosin light chain.

Front

What is the role of myosin in muscle contraction?

Back

Myosin is a motor protein that interacts with actin filaments to produce muscle contraction.

Front

What is the function of the superior colliculus?

Back

The superior colliculus is involved in visual processing and coordinating eye movements.