Question 1

Reciprocal innveration means that the ____.

Accepted Answer

A) antagonist muscle groups contract at the same time 
B) antagonist muscle groups relax at the same time 
C) antagonist muscle groups alternate contraction and relaxation 
D) synergistic muscle groups contract at the same time 
E) synergistic muscle groups relax at the same time 
A) antagonist muscle groups contract at the same time 
B) antagonist muscle groups relax at the same time 
C) antagonist muscle groups alternate contraction and relaxation 
D) synergistic muscle groups contract at the same time 
E) synergistic muscle groups relax at the same time

Question 2

The cancer ____________________ affects skeletal muscle.

Accepted Answer

The answer of The cancer ____________________ affects skeletal muscle....

Question 3

The ____________________ theory describes how interactions between actin and myosin produce skeletal muscle contractions.

Accepted Answer

The answer of The ____________________ theory describes how interactions between...

Question 4

When the biceps brachii muscle contracts the forearm moves towards the upper arm. Based on this movement, on which bone is the biceps brachii insertion?

Accepted Answer

A) scapula 
B) clavicle 
C) humerus 
D) femur 
E) radius 
A) scapula 
B) clavicle 
C) humerus 
D) femur 
E) radius

Question 5

Which muscle is the antagonist of the quadriceps femoris group?

Accepted Answer

A) hamstrings 
B) gluteus maximus 
C) sartorius 
D) gastrocnemius 
E) tibialis anterior 
A) hamstrings 
B) gluteus maximus 
C) sartorius 
D) gastrocnemius 
E) tibialis anterior

Question 6

Calcium is stored and released by the ____.

Accepted Answer

A) t-tubules 
B) sarcomere 
C) troponin 
D) tropomyosin 
E) sarcoplasmic reticulum 
A) t-tubules 
B) sarcomere 
C) troponin 
D) tropomyosin 
E) sarcoplasmic reticulum

Question 7

Motor units containing only a few hundred muscles are found where?

Accepted Answer

A) arm 
B) eye 
C) back 
D) thigh 
E) neck 
A) arm 
B) eye 
C) back 
D) thigh 
E) neck

Question 8

The thick filaments of skeletal muscle ____.

Accepted Answer

A) are composed of proteins with a double head and tail 
B) are composed of actin 
C) are attached to Z lines 
D) make up the light bands of the muscle 
E) are bead-like proteins 
A) are composed of proteins with a double head and tail 
B) are composed of actin 
C) are attached to Z lines 
D) make up the light bands of the muscle 
E) are bead-like proteins

Question 9

What is released into the neuromuscular junction to produce a muscle contraction?

Accepted Answer

A) calcium 
B) acetylcholine 
C) potassium 
D) sodium 
E) chloride 
A) calcium 
B) acetylcholine 
C) potassium 
D) sodium 
E) chloride

Question 10

In a relaxed muscle the protein ____________________ is blocking binding sites between the contractile proteins.

Accepted Answer

The answer of In a relaxed muscle the protein ____________________...

Question 11

Which description of skeletal muscle is correct?

Accepted Answer

A) Each cell contains one nucleus. 
B) The fibers and filaments are arranged in parallel. 
C) Sarcomeres work in opposite directions during contraction. 
D) Actin power strokes produce the contraction. 
E) The thin filaments are situated in the middle of each sarcomere. 
A) Each cell contains one nucleus. 
B) The fibers and filaments are arranged in parallel. 
C) Sarcomeres work in opposite directions during contraction. 
D) Actin power strokes produce the contraction. 
E) The thin filaments are situated in the middle of each sarcomere.

Question 12

The force a contracting muscle exerts to move an object is muscle ____.

Accepted Answer

A) tone 
B) tension 
C) power 
D) work 
E) energy 
A) tone 
B) tension 
C) power 
D) work 
E) energy

Question 13

Which structure marks the ends of a sarcomere?

Accepted Answer

A) cell 
B) myofibril 
C) Z line 
D) actin 
E) myosin 
A) cell 
B) myofibril 
C) Z line 
D) actin 
E) myosin

Question 14

The state during which muscle cells require more ATP than cellular respiration can provide is known as ____.

Accepted Answer

A) summation 
B) tetanus 
C) paralysis 
D) lactic acid debt 
E) oxygen debt 
A) summation 
B) tetanus 
C) paralysis 
D) lactic acid debt 
E) oxygen debt

Question 15

During a muscle contraction, electrical impulses travel to the interior of the cell through ____.

Accepted Answer

A) t-tubules 
B) endoplasmic reticulum 
C) troponin 
D) tropomyosin 
E) sarcoplasmic reticulum 
A) t-tubules 
B) endoplasmic reticulum 
C) troponin 
D) tropomyosin 
E) sarcoplasmic reticulum

Question 16

Calcium binds directly to which muscle protein?

Accepted Answer

A) actin 
B) myosin 
C) troponin 
D) tropomyosin 
E) sarcoplasmic reticulum 
A) actin 
B) myosin 
C) troponin 
D) tropomyosin 
E) sarcoplasmic reticulum

Question 17

The skeletal muscle attachment site that moves during a contraction is the ____________________.

Accepted Answer

The answer of The skeletal muscle attachment site that moves...

Question 18

Match between columns
                        Premises: lateral rotation of the trunk
draws the thighs toward the midline of the body
extends the arm at the elbow
runs from the hip to the knee across the anterior thigh
draws scapula forward
acts on the foot
chest muscle that acts on humerus
extends the lower leg at the knee

Accepted Answer

The Answer of sartorius and serratus anterior and tibialis anterior is...

Question 19

The ____________________ takes up and releases calcium during muscle contraction and relaxation.

Accepted Answer

sarcoplasm

Question 20

Strength training involves ____.

Accepted Answer

A) activities like jogging and swimming 
B) intense, short duration activity 
C) decreased number of myofibrils 
D) involving more enzymes in aerobic activity 
E) producing muscles with higher endurance 
A) activities like jogging and swimming 
B) intense, short duration activity 
C) decreased number of myofibrils 
D) involving more enzymes in aerobic activity 
E) producing muscles with higher endurance

Exam 6: The Muscular System

Reciprocal innveration means that the ____.

The cancer ____________________ affects skeletal muscle.

The ____________________ theory describes how interactions between actin and myosin produce skeletal muscle contractions.

When the biceps brachii muscle contracts the forearm moves towards the upper arm. Based on this movement, on which bone is the biceps brachii insertion?

Which muscle is the antagonist of the quadriceps femoris group?

Calcium is stored and released by the ____.

Motor units containing only a few hundred muscles are found where?

The thick filaments of skeletal muscle ____.

What is released into the neuromuscular junction to produce a muscle contraction?

In a relaxed muscle the protein ____________________ is blocking binding sites between the contractile proteins.

Which description of skeletal muscle is correct?

The force a contracting muscle exerts to move an object is muscle ____.

Which structure marks the ends of a sarcomere?

The state during which muscle cells require more ATP than cellular respiration can provide is known as ____.

During a muscle contraction, electrical impulses travel to the interior of the cell through ____.

Calcium binds directly to which muscle protein?

The skeletal muscle attachment site that moves during a contraction is the ____________________.

The ____________________ takes up and releases calcium during muscle contraction and relaxation.

Strength training involves ____.

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA Genes and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

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