Question 1

Functions of the vertebrate endoskeleton include

Accepted Answer

A)  production of blood cells only.
B)  both production of nerve cells and storage of calcium.
C)  storage of calcium only.
D)  both production of blood cells and storage of calcium.
E)  production of nerve cells only.F) A) and E)
G) A) and C)

Question 2

Blood calcium levels are regulated by hormones secreted from the parathyroid and thyroid.When blood calcium is low which of the following would be stimulated by the parathyroid?

Accepted Answer

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

Question 3

Without muscles,bones ______ and without bones,muscles ______.

Accepted Answer

A)  would remain in one location;would move soft tissue layers
B)  would remain in one location;would remain in one location
C)  would provide movement;would remain in one location
D)  would be useless;would remain under control of the nervous system
E)  would remain under control of the nervous system;would be uselessF) C) and E)
G) A) and B)

Question 4

Which of the following is NOT a function of skeletal muscles?

Accepted Answer

A)  Produce heat to keep the body warm.
B)  Yell a command.
C)  Blink.
D)  Kick a ball.
E)  Pump blood through the heart.F) A) and E)
G) A) and D)

Question 5

A sprain is a stretched or torn

Accepted Answer

A)  ligament.
B)  tendon.
C)  muscle.
D)  neuron.
E)  vein.F) A) and B)
G) All of the above

Question 6

Which of the following is not a bone of the upper limbs?

Accepted Answer

A)  radius
B)  ulna
C)  patella
D)  humerus
E)  clavicleF) A) and D)
G) All of the above

Question 7

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,thoracic.F) A) and B)
G) B) and E)

Question 8

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",what does the high level similarity between the myosin gene sequences in human and non-human primates suggest?

Accepted Answer

A)  Humans and non-human primates had a common ancestor at some time in the past.
B)  Humans and non-human primates had common ancestor 2.4 million years ago.
C)  The myosin gene arose independently in humans and non-human primates.
D)  Genes can transfer readily between humans and non-human primates.
E)  No natural selection has occurred in humans.F) B) and E)
G) A) and B)

Question 9

Which of the following is not a part of the axial skeleton?

Accepted Answer

A)  pelvic girdle
B)  ribs
C)  skull
D)  sternum
E)  vertebral columnF) C) and D)
G) A) and B)

Question 10

The type of skeleton composed of calcium rich-spines,cartilage or bone is a(n)

Accepted Answer

A)  exoskeleton.
B)  hydrostatic skeleton.
C)  gastrovascular cavity.
D)  endoskeleton.
E)  vascular canal.F) All of the above
G) A) and C)

Question 11

According to the sliding filament model,a muscle fiber contracts when thick filaments slide between thin filaments,lengthening the sarcomere.

Accepted Answer

A) True 
 B)False

Question 12

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) None of the above
G) D) and E)

Question 13

Which of the following is not a part of the appendicular skeleton?

Accepted Answer

A)  pelvic girdle
B)  sternum
C)  pectoral girdle
D)  femur
E)  humerusF) C) and E)
G) B) and C)

Question 14

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 mitochondria.E) A) and B)
F) B) and D)

Question 15

Skeletal muscle contraction is important in maintaining body temperature homeostasis.

Accepted Answer

A) True 
 B)False

Question 16

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",why did the researchers look for a human myosin gene containing a mutation in tissue samples from non-primates?

Accepted Answer

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

Question 17

Tendons are connective tissues that connect _______________ to ________________.

Accepted Answer

A)  muscle;bone
B)  ligaments;bone
C)  muscle;muscle
D)  bone;bone
E)  cartilage;boneF) B) and C)
G) B) and D)

Question 18

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",how can the deletion of the two base pairs in the myosin gene only affect the temporalis muscle?

Accepted Answer

A)  The gene was transcribed only in the temporalis muscle.
B)  The deletion was present only 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 deletion.F) A) and E)
G) C) and D)

Question 19

After death,muscles remain in a stiff position for several hours.Which of the following explains this observation?

Accepted Answer

A)  ATP is required to break the bond between actin and myosin.
B)  ATP is required for actin to bind to myosin.
C)  ATP is required for the motor neuron to signal a muscle to relax.
D)  ATP is required for calcium ions to be pumped into the muscle cell.
E)  ATP is required to produce creatine phosphatE.F) All of the above
G) None of the above

Question 20

A disorder of the axial skeleton in which the vertebral column curves to the side is known as

Accepted Answer

A)  Graves' disease.
B)  a ruptured cartilage.
C)  scleroderma.
D)  All answers are correct.
E)  scoliosis.F) B) and E)
G) None of the above

Exam 26: The Skeletal and Muscular Systems

A disorder of the axial skeleton in which the vertebral column curves to the side is known as

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",what does the high level similarity between the myosin gene sequences in human and non-human primates suggest?

Correct AnswerverifiedShow Answer

After death,muscles remain in a stiff position for several hours.Which of the following explains this observation?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Skeletal muscle contraction is important in maintaining body temperature homeostasis.

Correct AnswerverifiedShow Answer

Which of the following is not a part of the axial skeleton?

Correct AnswerverifiedShow Answer

Which of the following is not a bone of the upper limbs?

Correct AnswerverifiedShow Answer

The vertebrae in descending order from the skull are

Correct AnswerverifiedShow Answer

Functions of the vertebrate endoskeleton include

Correct AnswerverifiedShow Answer

According to the sliding filament model,a muscle fiber contracts when thick filaments slide between thin filaments,lengthening the sarcomere.

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of skeletal muscles?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",why did the researchers look for a human myosin gene containing a mutation in tissue samples from non-primates?

Correct AnswerverifiedShow Answer

The type of skeleton composed of calcium rich-spines,cartilage or bone is a(n)

Correct AnswerverifiedShow Answer

A sprain is a stretched or torn

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

In the section "Investigating Life: Did a Myosin Gene Mutation Make Humans Brainier?",how can the deletion of the two base pairs in the myosin gene only affect the temporalis muscle?

Correct AnswerverifiedShow Answer

Blood calcium levels are regulated by hormones secreted from the parathyroid and thyroid.When blood calcium is low which of the following would be stimulated by the parathyroid?

Correct AnswerverifiedShow Answer

Which of the following is not a part of the appendicular skeleton?

Correct AnswerverifiedShow Answer

Tendons are connective tissues that connect _______________ to ________________.

Correct AnswerverifiedShow Answer

Without muscles,bones ______ and without bones,muscles ______.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Tendons are connective tissues that connect _ to __.

Correct Answer
verified

Without muscles,bones and without bones,muscles .

Correct Answer
verified