Question 1

The type of skeleton that is usually composed of either a calcium containing shell or chitin is a(an) :

Accepted Answer

A)  Endoskeleton
B)  Exoskeleton
C)  Hydrostatic skeleton
D)  Gastrovascular cavity
E)  Vascular canalF) None of the above
G) C) and E)

Question 2

A thin filament of muscle is composed primarily of the protein:

Accepted Answer

A)  Hemoglobin
B)  Myosin
C)  Myoglobin
D)  Actin
E)  PectinF) A) and C)
G) All of the above

Question 3

Ligaments connect bone to bone.

Accepted Answer

A) True 
 B)False  True

Question 4

You are trying out for the USA Olympic gymnastics team.Everything is going well until you turn your ankle on the landing and tore a connection between two bones.Now you will have to wait another four years.Which of the following could you have done to your ankle?

Accepted Answer

A)  Sprained a ligament
B)  Strained a ligament
C)  Sprained a tendon
D)  Strained a tendonE) B) and D)
F) None of the above

Question 5

The two closely allied organ systems that allow for running,swimming and flying under the direction of the nervous system are the:

Accepted Answer

A)  Skeletal and endocrine systems
B)  Muscular and endocrine systems
C)  Muscular and skeletal systems
D)  Circulatory and muscular systems
E)  Circulatory and skeletal systemsF) None of the above
G) A) and D)

Question 6

Bones regulate calcium homeostasis.

Accepted Answer

A) True 
 B)False

Question 7

Why did the researchers look for the myosin mRNA in tissue samples from the non-primates?

Accepted Answer

A)  To see if the myosin gene was being transcribed
B)  To see if the myosin gene was being translated
C)  To see if they had the myosin gene
D)  To see if they had the two base pair deletion in the myosin gene
E)  To see if loss of the myosin gene made the non-human primates behave more like humansF) A) and E)
G) B) and D)

Question 8

The vertebrae in descending order from the skull are:

Accepted Answer

A)  Cervical, thoracic, lumbar
B)  Lumbar, thoracic, cervical
C)  Cervical, lumbar, thoracic
D)  Thoracic, lumbar, cervical
E)  Lumbar, cervical, thoracicF) A) and B)
G) C) and E)

Question 9

Ligaments are connective tissues that connect _______________ to _________________.

Accepted Answer

A)  muscle, muscle
B)  muscle, bone
C)  tendons, bone
D)  bone, bone
E)  cartilage, boneF) A) and D)
G) B) and C)

Question 10

After a muscle cell contracts,which of the following must occur for the muscle to stop contracting?

Accepted Answer

A)  Calcium ions must be pumped back into the endoplasmic reticulum
B)  Calcium ions must be pumped out of the muscle cell
C)  Calcium ions must flow out of the endoplasmic reticulum
D)  Calcium ions must flow into the muscle cell
E)  Calcium ions must flow out of the muscle cellF) A) and D)
G) A) and C)

Question 11

The breast muscle of a wild duck is dark,while that of a domesticated chicken is white.What would be true of breast muscle in a wild duck?

Accepted Answer

A)  They are fast twitch muscles with abundant capillaries and mitochondria
B)  They are slow twitch muscles with few capillaries or mitochondria
C)  They are slow twitch muscles with abundant capillaries and mitochondria
D)  They are fast twitch muscles with few capillaries or mitochondriaE) B) and C)
F) None of the above

Question 12

How can the described two base pair deletion in the myosin gene only affect the temporalis muscle?

Accepted Answer

A)  The gene was only transcribed in the temporalis muscle
B)  The deletion was only present in DNA in the temporalis muscle
C)  Other muscles also transcribe the myosin gene
D)  The temporalis muscle also transcribes other myosin genes
E)  Other muscles can repair the deletionF) A) and C)
G) B) and E)

Question 13

Skeletal muscle contraction is important in maintaining body temperature homeostasis.

Accepted Answer

A) True 
 B)False

Question 14

How can humans survive if they have an inactive gene that encodes a non-functional myosin protein?

Accepted Answer

A)  We have over 40 closely related myosin genes
B)  Myosin is not essential for life
C)  Myosin participates in several processes in the cell
D)  Other proteins in the body can do the same thing as myosin
E)  Other primates have the same non-functional myosin protein and surviveF) C) and D)
G) All of the above

Question 15

Osteoarthritis is caused when bones in a joint rub against each other directly.Which of the following happens in osteoarthritis?

Accepted Answer

A)  New bone is made in the joint
B)  Cartilage is destroyed
C)  Ligaments are torn
D)  The synovial membrane is destroyed
E)  Tendons are tornF) A) and E)
G) D) and E) B

Question 16

If you placed an electrode on a person's triceps and stimulated the muscle,which of the following would occur?

Accepted Answer

A)  They would not be able to straighten their leg
B)  They would not be able to straighten their arm
C)  They would not be able to bend their leg
D)  They would not be able to bend their armE) None of the above
F) A) and D)

Question 17

Which of the following is not an important function of calcium in vertebrates?

Accepted Answer

A)  Blood clotting
B)  Muscle contraction
C)  Transport of oxygen to the body's cells
D)  Cell membrane permeability
E)  Strengthening of boneF) A) and E)
G) A) and C)

Question 18

Which of the following will be true of the bones of a bedridden person?

Accepted Answer

A)  Chondrocytes will be more active than normal
B)  Osteoblasts will be more active than normal
C)  There will be more calcium uptake than normal
D)  There will be more red marrow than normal
E)  Osteoclasts will be more active than normalF) A) and C)
G) A) and B)

Question 19

Botulism is caused by the bacterium Clostridium botulinum which produces a toxin (Botox) that blocks acetylcholine release.How would Botox injections be useful in removing wrinkles?

Accepted Answer

A)  By blocking ATP production
B)  By preventing muscles from relaxing
C)  By killing neurons
D)  By killing muscle cells
E)  By preventing muscles from contractingF) B) and D)
G) B) and C) E

Question 20

When blood calcium is high which of the following would be stimulated by the thyroid?

Accepted Answer

A)  Uptake of calcium from food by the intestine and secretion into the urine by the kidney
B)  Uptake of calcium from food by the intestine and absorption from the urine by the kidney
C)  Decreased uptake of calcium from food by the intestine and secretion into the urine by the kidney
D)  Decreased uptake of calcium from food by the intestine and absorption from the urine by the kidneyE) A) and B)
F) All of the above

Exam 28: The Musculoskeletal System

The type of skeleton that is usually composed of either a calcium containing shell or chitin is a(an) :

Correct AnswerverifiedShow Answer

A thin filament of muscle is composed primarily of the protein:

Correct AnswerverifiedShow Answer

Ligaments connect bone to bone.

Correct AnswerverifiedTrue

You are trying out for the USA Olympic gymnastics team.Everything is going well until you turn your ankle on the landing and tore a connection between two bones.Now you will have to wait another four years.Which of the following could you have done to your ankle?

Correct AnswerverifiedShow Answer

The two closely allied organ systems that allow for running,swimming and flying under the direction of the nervous system are the:

Correct AnswerverifiedShow Answer

Bones regulate calcium homeostasis.

Correct AnswerverifiedShow Answer

Why did the researchers look for the myosin mRNA in tissue samples from the non-primates?

Correct AnswerverifiedShow Answer

The vertebrae in descending order from the skull are:

Correct AnswerverifiedShow Answer

Ligaments are connective tissues that connect _______________ to _________________.

Correct AnswerverifiedShow Answer

After a muscle cell contracts,which of the following must occur for the muscle to stop contracting?

Correct AnswerverifiedShow Answer

The breast muscle of a wild duck is dark,while that of a domesticated chicken is white.What would be true of breast muscle in a wild duck?

Correct AnswerverifiedShow Answer

How can the described two base pair deletion in the myosin gene only affect the temporalis muscle?

Correct AnswerverifiedShow Answer

Skeletal muscle contraction is important in maintaining body temperature homeostasis.

Correct AnswerverifiedShow Answer

How can humans survive if they have an inactive gene that encodes a non-functional myosin protein?

Correct AnswerverifiedShow Answer

Osteoarthritis is caused when bones in a joint rub against each other directly.Which of the following happens in osteoarthritis?

Correct AnswerverifiedB

If you placed an electrode on a person's triceps and stimulated the muscle,which of the following would occur?

Correct AnswerverifiedShow Answer

Which of the following is not an important function of calcium in vertebrates?

Correct AnswerverifiedShow Answer

Which of the following will be true of the bones of a bedridden person?

Correct AnswerverifiedShow Answer

Botulism is caused by the bacterium Clostridium botulinum which produces a toxin (Botox) that blocks acetylcholine release.How would Botox injections be useful in removing wrinkles?

Correct AnswerverifiedE

When blood calcium is high which of the following would be stimulated by the thyroid?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Ligaments are connective tissues that connect _ to ___.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
E

Correct Answer
verified