with complete solutions6
Smooth and cardiac muscle tissue are both under voluntary control. - ANSWERS false
The musculocutaneous nerve is part of the central nervous system. - ANSWERS true
A sensory signal is a signal that is sent from a muscle to the central nervous system. - ANSWERS
true
There are five types of muscle tissue found in the body. - ANSWERS false
The lumbar plexus contains nerves that innervate the thigh. - ANSWERS true
Ligaments connect which types of tissue? - ANSWERS connect bone to bone
Answer the following short-answer question:
Acetylcholine is what type of substance? - ANSWERS neurotransmitter
Answer the following short-answer question:
During a muscle contraction which protein myofilament is pulled along?
Your Answer: - ANSWERS actin
, What is the name of the thin myofilament? - ANSWERS actin
Answer the following short-answer question:
What must occur for a muscle contraction to stop? - ANSWERS for a muscle contraction to stop
the calcium ions must be pumped back into sarocplasmic reticulum
Identify the muscle and its action highlighted in the figure below. - ANSWERS Zygomaticus
Minor
Action: Pulls corners of lips upward
Identify the muscle and its action in the figure below. - ANSWERS Scalenes (Optional:
anterior/middle/posterior)
Action: Elevates ribs 1 & 2
Identify the three divisions of the muscle group highlighted below. - ANSWERS Spinalis thoracis,
Spinalis cervicis, and Spinalis capitis
Identify the origin and insertion of the muscle indicated by the pointer below. Be as specific as
possible in your response. - ANSWERS Origin: pubic crest, pubic symphysis
Insertion: cartilages of ribs 5-7, xiphoid process
(This is the Rectus Abdominis. Student needs to include 2 locations each for full credit)
Identify the muscle and its actions (include at least two) indicated in the figure below. -
ANSWERS Trapezius
Action: rotation, retraction, elevation, depression of scapula; extends neck and stabilizes
shoulder