chapter 9: Pearson quiz

30問 • 1年前

Madeline Joslyn

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

M#4 Proteins

ユーザ名非公開 · 8問 · 9日前

M#4 Proteins

8問 • 9日前

ユーザ名非公開

M#5 Section and Title v2

ユーザ名非公開 · 32問 · 13日前

M#5 Section and Title v2

32問 • 13日前

ユーザ名非公開

RNPCP Chapter 10 to 13

ユーザ名非公開 · 93問 · 13日前

RNPCP Chapter 10 to 13

93問 • 13日前

ユーザ名非公開

August 2019 Special PE Exam

ユーザ名非公開 · 93問 · 13日前

August 2019 Special PE Exam

単位認定試験　生物基礎

単位認定試験　生物基礎

ap psych midterm 1.1-1.4

ユーザ名非公開 · 63問 · 1ヶ月前

ap psych midterm 1.1-1.4

63問 • 1ヶ月前

ユーザ名非公開

FACTORS AFFECTING ENZYME ACTIVITY-MCQ

ayrika · 89問 · 1ヶ月前

FACTORS AFFECTING ENZYME ACTIVITY-MCQ

TOXINS

TOXINS

TOXINS

TOXINS

DRUG OF ABUSE

DRUG OF ABUSE

DRUG OF ABUSE

DRUG OF ABUSE

TOXICOLOGY

TOXICOLOGY

TOXICOLOGY

TOXICOLOGY

TOXICOLOGY

TOXICOLOGY

OTHER GLANDS

OTHER GLANDS

OTHER GLANDS

OTHER GLANDS

ADRENAL GLAND

ADRENAL GLAND

THYROID GLAND

THYROID GLAND

THYROID GLAND

THYROID GLAND

PITUITARY GLAND PART 2

ayrika · 5問 · 1ヶ月前

PITUITARY GLAND PART 2

5問 • 1ヶ月前

ayrika

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