Myofibrils Study guides, Study notes & Summaries

A&P 1 Final Exam, Straighterline Anatomy and Physiology 1, Straighterline A&P 1 Cumulative Final Exam 2024 What is the smallest level of organization in the body that contains the body's genetic information? Select one: a. chemical b. cellular c. tissue d. organism - Answer-B. Cellular The cellular level includes the nucleus, an organelle that contains the body's genetic information. Which is an example of a normally occurring positive-feedback mechanism? Select one: a. elevated bl...

The text discusses the muscular system, including the different types of muscle tissue, structure and function of skeletal muscles, and movement. Some key points: There are three main types of muscle tissue: skeletal, smooth, and cardiac. They differ in structure, properties, and location. Skeletal and cardiac muscles are striated while smooth muscle is not. Skeletal muscles contain myofibrils made of thick myosin and thin actin filaments. A sarcomere is the basic contractile unit between...

A&P 1 Final Exam, Straighterline Anatomy and Physiology 1, Straighterline A&P 1 Cumulative Final Exam 2024 What is the smallest level of organization in the body that contains the body's genetic information? Select one: a. chemical b. cellular c. tissue d. organism - Answer-B. Cellular The cellular level includes the nucleus, an organelle that contains the body's genetic information. Which is an example of a normally occurring positive-feedback mechanism? Select one: a. elevated ...

What is the connective tissue covering that encloses the sarcolemma of an individual muscle fiber? A) epimysium B) perimysium C) endomysium D) periosteum - Answer C) endomysium What is a fascicle? A) muscle B) bundle of muscle fibers enclosed by a connective tissue sheath C) bundle of myofibrils D) group of myofilaments - Answer B) bundle of muscle fibers enclosed by a connective tissue sheath What are the differences, if any, in the composition for thick and thin myofilame...

Which layer of serous membrane lines the walls of cavities? - Answer-Visceral (wrong) Which directional term, also known as dorsal, means nearer to or at the back of the body? - AnswerPosterior Which type of tissue produces chemicals and fluid that digests food in the stomach? - Answer-Muscle (wrong) Which term describes the study of the function of components of the body? - Answer-Physiology Eight chemical elements constitute 3.6 percent of total body mass. What are these chemical elements...

Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora. Multiple Choice & Essays 1. How much of the total body weight of the average adult is muscle tissue? a. 20-30% b. 30-40% c. 40-50% d. 50-60% e. 60-70% Ans: C Difficulty: medium Feedback: Chapter Opener 2. The different types of muscle tissue differ from each other by: a. Microscopic anatomy b. Location c. Type of Control d. Both a and b e. All of the above Ans: E Diffic...

NASM 7th Edition Questions and Answers 2023 What percentage of adults are do not meet recommended activity guidelines? 80% BMI Normal 18.5-24.9 Overweight BMI 25-29.9 Obese BMI over 30 Bad Blood Pressure Hypertension= 140/90 normal blood pressure 120/80 140 systolic It is specifically the maximum arterial pressure during contraction of the left ventricle of the heart. 90 Diastolic- relating to the phase of the heartbeat when the heart mus...

ISSA Nutrition Final Exam Questions and Answers Graded 100% Latest 2023. Approximately how many calories are in 1 gram of fat? a.6 b.7 c.5 d.9 18. Marathon training primarily recruits which type of fibers? a. Type IIx b. Type II c. Fast twitch d. Slow twitch 19. Fat-soluble vitamins include A, D, E, and which of the following? a. B b. C c. K d. H 20. A client is Type I diabetic and asks for a meal plan, what should the trainer do? 21. The knee is stabilized on the anterior side b...

1. Which of the following tissues is always avascular? A) connective tissue D) epithelial tissue B) muscle tissue E) nervous tissue C) skeletal tissue Ans:  D Difficulty:  Medium 2. A scientist who examines tissue changes that might indicate disease is called a A) histologist. D) epidemologist B) radiologist. E) endocrinologist. C) pathologist. Ans:  C Difficulty:  Easy 3. The tissue lining body cavities is A) epithelial tissue. D) m...

Which of the following is a recognized function of skeletal muscle? 1) A) guard body entrances and exits B) maintain posture C) maintain body temperature D) produce movement E) all of the above - Answer-E Nerves and blood vessels that service the muscle fibers are located in the connective tissues of the A) myofibrils. B) sarcolemma. C) endomysium. D) sarcomere. E) perimysium. - Answer-E Which of the following best describes the term sarcoplasmic reticulum? A) largely made of myosin...

Which of the following is a recognized function of skeletal muscle? 1) A) guard body entrances and exits B) maintain posture C) maintain body temperature D) produce movement E) all of the above - ANSWER E Nerves and blood vessels that service the muscle fibers are located in the connective tissues of the A) myofibrils. B) sarcolemma. C) endomysium. D) sarcomere. E) perimysium. - ANSWER E Which of the following best describes the term sarcoplasmic reticulum? A) larg...