S23 Exam 2 Review

What part of the sarcomere joins actin and titin?

• Tropomysoin

• I band

• H band

• Z disc

Transverse tubules are located in

• Sarcosplasmic reticulum

• Sarcolemma

• Neuromuscular junction

• Sarcoplasm

When you get annoyed and pount, which muscle is activated?

• Mentalis

• Risorius

• Depressor anguli oris

• Depressor labii inferioris

The muscles of the abdominal wall act together to...

• extend and adduct vertebral column

• flex and extend vertebral column

• flex and stabilize vertebral column

• Rotate and depress vertebral column

Satellite cells....

• myelinate axons in PNS

• conduct action potentials

• support cell bodies in PNS

• secrete CSF

How would a muscle receive the signal to contract?

• Afferent neurons

• Astrocytes

• Myelin

• Efferent neurons

Articular discs are only found in certain...

• amphiarthroses

• diarthroses

• synostoses

• symphyses

Dorsiflexion, plantar flexion, and extension are movements that are unique to the...

• elbow joint

• knee joint

• ankle joint

• hip joint

Flexion, extension, and slight rotation are movements that are unique to the...

• knee joint

• hip joint

• elbow joint

• shoulder joint

The proximal radioulnar joint is stabilized by the...

• ulnar collateral ligament

• radial collateral ligament

• fibular collateral ligament

• anular ligament