chapter 9: Pearson quiz

Madeline Joslyn · 46回閲覧 · 25問 · 1年前

通報

問題一覧

An entire skeletal muscle is surrounded by

epimysium

A motor neuron along with all the muscle fibers it supplies is called a(n) _________

motor unit

Which of the following does NOT occur during skeletal muscle contraction?

Calcium binds to myosin heads.

What is the ion released from the terminal cisternae that combines with troponin and removes the blocking action of tropomyosin, resulting in the formation of cross bridges?

Ca2+

Each skeletal muscle fiber is controlled by a neuron at a single _________

neuromuscular junction

Which of the following best describes the composition of the structure known as a triad in a skeletal muscle fiber?

terminal cisterna, transverse tubule, and terminal cisterna

In the sliding filament model of muscle contraction, the myofilaments slide over each other, resulting in the overlapping of actin and _________

myosin

Myoglobin ______

is an oxygen-storage molecule

The functional unit of contraction in a skeletal muscle fiber is the _______

sarcomere

The space between the axon terminus of the neuron and the sarcolemma of the muscle fiber is ______

synaptic cleft

Continued mild or partial contraction of a muscle that keeps it healthy and ready to respond is known as muscle _______

tone

The type of muscle contraction in which the muscle fibers produce increased tension although the muscle neither shortens nor lengthens is called _______

isometric

Which of the following statements about smooth muscle is true?

Fibers are small and spindle-shaped.

Which of the following statements is INCORRECT?

Skeletal muscles are responsible for the pumping action of the heart.

Which of the following substances increases in quantity during repetitive muscle contraction during oxygen deficit?

lactic acid

The sequence of electrical changes that occurs along the sarcolemma when a muscle fiber is stimulated is known as the ______

action potential

Which of the following allows recoil of the muscle fiber when contraction ends?

elastic filaments

Which one of the following binds calcium ions in a smooth muscle, causing contraction?

calmodulin

All of the following terms refer to the ability to receive and respond to a stimulus EXCEPT ______

contractility

During the phase of excitation-contraction coupling of skeletal muscle, what occurs immediately after the action potential spreads down the T tubule?

The sarcoplasmic reticulum releases calcium.

Which of the following muscles is voluntary?

the muscle that extends the arm at the elbow

Which of the following is NOT a characteristic of skeletal muscle contraction?

It can contract for long periods of time without tiring.

Which type of skeletal muscle contains abundant quantities of glycogen?

fast glycolytic fibers

Myofilament cross bridges form when which two structures bond?

myosin heads and globular actin

Which of the following is thought to be an autoimmune disease of acetylcholine receptors?

myasthenia gravis

the refractory period in which the muscle will NOT contract if stimulated occurs during _____ of the muscle cell.

repolarization

What is the cause of rigor mortis?

calcium influx into the sarcoplasm after death

Where does 95% of the energy needed for contraction come from during moderate exercise?

aerobic respiration

The alternating contraction and relaxation of opposing layers of smooth muscle is referred to as ______

peristalsis

Which of the following characteristics is unique to smooth muscle?

the absence of striations

chapter 21

chapter 21

46回閲覧 • 25問 • 1年前

chapter 22

chapter 22

Chapter 12

Chapter 12

Chapter 13

Chapter 13

chapter 14

chapter 14

chapter 20

chapter 20

chapter 15

chapter 15

chapter 16

chapter 16

chapter 18

chapter 18

Madeline Joslyn · 29問 · 1年前

chapter 1: lecture notes

chapter 1: lecture notes

29問 • 1年前

Madeline Joslyn · 16問 · 1年前

chapter 1: requirements for life slides

chapter 1: requirements for life slides

16問 • 1年前

Madeline Joslyn · 30問 · 1年前

Pearson practice quiz questions

Pearson practice quiz questions

30問 • 1年前

Madeline Joslyn · 22問 · 1年前

chapter 2: chemistry and physiological

chapter 2: chemistry and physiological

22問 • 1年前

Madeline Joslyn · 23問 · 1年前

2.2 Atoms and Elements

2.2 Atoms and Elements

23問 • 1年前

Madeline Joslyn · 20問 · 1年前

Pearson practice test questions

Pearson practice test questions

20問 • 1年前

2.2 continued

2.2 continued

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2.3 Combining Matter

2.3 Combining Matter

35問 • 1年前

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2.4 chemical bonds

2.4 chemical bonds

21問 • 1年前

2.6 Inorganic compounds

2.6 Inorganic compounds

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acids and bases

acids and bases

15問 • 1年前

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body cavities

body cavities

13問 • 1年前

membranes in the ventral body cavity

membranes in the ventral body cavity

11 Body Systems

11 Body Systems

biomolecules

biomolecules

homeostatic control

homeostatic control

3.1

3.1

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3.2

3.2

17問 • 1年前

cell junctions

cell junctions

3.3

3.3

3.4

3.4

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tissues

tissues

9問 • 1年前

4.2

4.2

3.10

3.10

3.12

3.12

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3.7

3.7

19問 • 1年前

connective tissue fibers

connective tissue fibers

cells in the connective tissue

cells in the connective tissue

classification of epithelia

classification of epithelia

muscle tissue

muscle tissue

nervous tissue

nervous tissue

covering and lining membranes

covering and lining membranes

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tissue repair

tissue repair

9問 • 1年前

embryonic and fetal development of tissues

embryonic and fetal development of tissues

epithelium

epithelium

granular epithelia

granular epithelia

layers of the skin

layers of the skin

6.1

6.1

basic structure, types, and locations

basic structure, types, and locations

growth of cartilage

growth of cartilage

6.2 functions of bones

6.2 functions of bones

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classification of bones

classification of bones

21問 • 1年前

6.5 bone development

6.5 bone development

the skeleton

the skeleton

the vertebral column

the vertebral column

7.4 The Pectoral Girdle

7.4 The Pectoral Girdle

7.5

7.5

8.1

8.1

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legs!

legs!

16問 • 1年前

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arms

arms

13問 • 1年前

cranium 1

cranium 1

6.3

6.3

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skull 1

skull 1

9問 • 1年前

homeostatic imbalance - spine

homeostatic imbalance - spine

Madeline Joslyn · 19問 · 1年前

regional vertebral characteristics

regional vertebral characteristics

19問 • 1年前

regional vertebrae thoracic and lumbar

regional vertebrae thoracic and lumbar

7.3 the thoracic cage

7.3 the thoracic cage

gross anatomy

gross anatomy

miscellaneous

miscellaneous

bone markings

bone markings

bones miscellaneous

bones miscellaneous

Madeline Joslyn · 18問 · 1年前

fractures

fractures

18問 • 1年前

muscle actions

muscle actions

muscle actions 2

muscle actions 2

chapter 9: muscular tissues!

chapter 9: muscular tissues!

muscles anterior diagram

muscles anterior diagram

muscles anterior abdomen and arms

muscles anterior abdomen and arms

anterior legs

anterior legs

muscle diagram posterior

muscle diagram posterior

Madeline Joslyn · 30問 · 1年前

chapter 10: Pearson quiz

chapter 10: Pearson quiz

30問 • 1年前

muscular tissue

muscular tissue

muscle miscellaneous

muscle miscellaneous

origins and insertions

origins and insertions

structure of a motor neuron

structure of a motor neuron