NEW BIOD 151 MODULE 5 ACTUAL EXAM
Q&A LATEST UPDATE
During a muscle contraction which protein myofilament is pulled
along?
-- ANSWER--Actin
What is the name of the thin myofilament?
-- ANSWER--Actin
What must occur for a muscle contraction to stop?
-- ANSWER--Calcium ions must be pumped back into the
sarcoplasmic reticulum
Your patient sustained an injury to their facial nerve (CN VII). Which
actions would be impaired?
-- ANSWER--Compress cheeks and Grin/grimace
Cardiac and smooth muscle tissue are both under involuntary control
-- ANSWER--True
Page 1 of 31
,The lumbar plexus is part of the central nervous system
-- ANSWER--False; this is a peripheral nerve
There are three types of muscle tissue found in the body
-- ANSWER--True: cardiac, skeletal and smooth
A motor signal is a signal that is sent from a muscle to the central
nervous system
-- ANSWER--False
The cervical plexus contains nerves that innervate the thigh.
-- ANSWER--False
Tendons connect which types of tissue
-- ANSWER--connect muscle to bone
Acetylcholine is what type of substance?
-- ANSWER--Neurotransmitter
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,Your patient is having a difficulty when asked to bring his chin to his
chest. He is also having difficulty turning his face from side to side.
What muscle is most likely impaired?
-- ANSWER--Sternocleidomastoid
A person sustained a back injury to the muscle group closest to the
spine. What muscle group was injured?
-- ANSWER--Spinalis
True or false: when a muscle contracts, the Z lines within a sarcomere
come closer together towards the M line.
-- ANSWER--True
True or false: The A band contains thin filaments.
-- ANSWER--True (A band contains thick filaments and thin
filaments)
Which muscle contracts to enable the main effort required to stand on
your toes?
-- ANSWER--Gastrocnemius
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, When Vastus Laterals contracts, which bone is pulled anteriorly?
-- ANSWER--Tibia
When flexor digitorum profundus contracts, what action(s) occurs?
-- ANSWER--Wrist Flexion and Flexion of digits 2-5
Contraction of _______ results in ______?
-- ANSWER--psoas major, his flexion
When piriforms contracts, what action(s) will not occur at the hip?
-- ANSWER--Internal rotation and Flexion
Describe the difference between tendons and ligaments.
-- ANSWER--Tendons are connective tissues that connect skeletal
muscle to bone at each end. Ligaments are connective tissue that
connects bone to bone, helping to stabilize joints where bones meet.
Describe the meaning of muscle origin and insertion.
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Q&A LATEST UPDATE
During a muscle contraction which protein myofilament is pulled
along?
-- ANSWER--Actin
What is the name of the thin myofilament?
-- ANSWER--Actin
What must occur for a muscle contraction to stop?
-- ANSWER--Calcium ions must be pumped back into the
sarcoplasmic reticulum
Your patient sustained an injury to their facial nerve (CN VII). Which
actions would be impaired?
-- ANSWER--Compress cheeks and Grin/grimace
Cardiac and smooth muscle tissue are both under involuntary control
-- ANSWER--True
Page 1 of 31
,The lumbar plexus is part of the central nervous system
-- ANSWER--False; this is a peripheral nerve
There are three types of muscle tissue found in the body
-- ANSWER--True: cardiac, skeletal and smooth
A motor signal is a signal that is sent from a muscle to the central
nervous system
-- ANSWER--False
The cervical plexus contains nerves that innervate the thigh.
-- ANSWER--False
Tendons connect which types of tissue
-- ANSWER--connect muscle to bone
Acetylcholine is what type of substance?
-- ANSWER--Neurotransmitter
Page 2 of 31
,Your patient is having a difficulty when asked to bring his chin to his
chest. He is also having difficulty turning his face from side to side.
What muscle is most likely impaired?
-- ANSWER--Sternocleidomastoid
A person sustained a back injury to the muscle group closest to the
spine. What muscle group was injured?
-- ANSWER--Spinalis
True or false: when a muscle contracts, the Z lines within a sarcomere
come closer together towards the M line.
-- ANSWER--True
True or false: The A band contains thin filaments.
-- ANSWER--True (A band contains thick filaments and thin
filaments)
Which muscle contracts to enable the main effort required to stand on
your toes?
-- ANSWER--Gastrocnemius
Page 3 of 31
, When Vastus Laterals contracts, which bone is pulled anteriorly?
-- ANSWER--Tibia
When flexor digitorum profundus contracts, what action(s) occurs?
-- ANSWER--Wrist Flexion and Flexion of digits 2-5
Contraction of _______ results in ______?
-- ANSWER--psoas major, his flexion
When piriforms contracts, what action(s) will not occur at the hip?
-- ANSWER--Internal rotation and Flexion
Describe the difference between tendons and ligaments.
-- ANSWER--Tendons are connective tissues that connect skeletal
muscle to bone at each end. Ligaments are connective tissue that
connects bone to bone, helping to stabilize joints where bones meet.
Describe the meaning of muscle origin and insertion.
Page 4 of 31
