CBSE Class 11 Physical Education Chapter 8: Fundamentals of Anatomy and Physiology NCERT Solutions

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NCERT Solutions PDF Class 11 PDF

This chapter delves into the fundamental concepts of Anatomy and Physiology, crucial for understanding the human body in the context of Physical Education. The NCERT Solutions provide clear definitions and explanations for key terms such as anatomy, physiology, skeletal system, muscles, and various physiological capacities like tidal volume and vital capacity. It covers the structure and function of the human body, including the number of bones in children and adults, the longest and smallest bones, and the different types of muscles. These solutions are designed to help students grasp the basic building blocks of the human body, aiding in their preparation for examinations by offering precise and easy-to-understand answers to common questions.

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BoardCBSE
ClassClass 11
SubjectPhysical Education
Session2026
LanguageEnglish
TypeNCERT Solutions
ChapterChapter 8

Chapter summary

Chapter 8 of the Class 11 Physical Education NCERT Solutions focuses on the foundational principles of Anatomy and Physiology. It defines these two interconnected fields, explains the skeletal system, joints, and muscles, and lists different types of muscles. The solutions also cover important physiological measures like tidal volume, vital capacity, and heart rate, providing essential knowledge for students studying the human body's structure and function.

Learning outcomes

  • Understand the definitions of anatomy and physiology.
  • Identify and describe the skeletal system and its components.
  • Differentiate between various types of muscles.
  • Recognize the longest and smallest bones in the human body.
  • Define and understand physiological terms like tidal volume and vital capacity.
  • Recall the number of bones in children and adults.

Topics covered

Paper topics

  • Definition of Anatomy
  • Definition of Physiology
  • Physiological Systems
  • Skeletal System
  • Joints
  • Bones (Longest and Smallest)
  • Muscles (Types and Function)
  • Cardiac Muscle
  • Jaw Muscle Strength
  • Bone Count (Child vs. Adult)
  • Tidal Volume
  • Vital Capacity
  • Heart Rate

Important topics

  • Definition of Anatomy and Physiology
  • Skeletal System and Joints
  • Types of Muscles
  • Tidal Volume and Vital Capacity
  • Bone Count Comparison

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Questions and Solutions

Question 1

Define anatomy.
Solution: Anatomy is the scientific discipline concerned with the study of the structure of the human body and the relationships between its parts. The term 'anatomy' originates from Greek words: 'ana' meaning 'apart' and 'tomy' meaning 'to cut'. Historically, anatomical knowledge was primarily gained through the dissection of bodies.

Question 2

Define physiology.
Solution: Physiology is the branch of biology that studies the functions and mechanisms of the operation of a living system, from the molecular level to cells, tissues, organs, and the entire organism. It focuses on how the body and its parts work or function.

Question 3

Name any four physiological systems of the human body.
Solution: Four major physiological systems of the human body are:
  1. Skeletal System
  2. Muscular System
  3. Digestive System
  4. Respiratory System
Other significant systems include the circulatory, nervous, endocrine, and urinary systems.

Question 4

Define the skeletal system.
Solution: The skeletal system forms the body's internal framework, providing structural support and shape. It is composed of all the bones in the body, along with cartilage, ligaments, and tendons that connect them.

Question 5

What do you understand by a joint?
Solution: A joint is the point where two or more bones meet within the body's skeleton. Joints can be classified based on their structure and the degree of movement they allow, ranging from fixed (immovable) joints to freely movable joints.

Question 6

Which is the longest and the smallest bone in the human body?
Solution: The longest bone in the human body is the Femur, commonly known as the thigh bone. The smallest bone in the human body is the stapes, located in the middle ear.

Question 7

What is a muscle?
Solution: A muscle is a type of body tissue made up of fibers that have the ability to contract. This contraction is essential for producing bodily movements and maintaining posture.

Question 8

Enlist the types of muscles.
Solution: The three main types of muscles in the human body are:
  1. Voluntary muscles (also known as skeletal or striated muscles)
  2. Involuntary muscles (also known as smooth or spindle muscles)
  3. Cardiac muscle (found in the heart)

Question 9

Which is the hardest working muscle in our body?
Solution: The cardiac muscle is considered the hardest working muscle in our body because it continuously contracts and relaxes to pump blood throughout the body, without rest, from birth until death.

Question 10

Which is the strongest muscle in our body?
Solution: The strongest muscle in the human body is often considered to be the masseter, which is the jaw muscle. Its strength is measured by its ability to exert force, allowing for powerful chewing.

Question 11

How many bones are there in a child and an adult?
Solution: A newborn baby typically has around 270-300 bones, which are often cartilaginous. As a child grows, many of these bones fuse together, resulting in the adult skeleton, which consists of 206 bones.

Question 12

What is tidal volume?
Solution: Tidal volume refers to the volume of air that is inhaled or exhaled during a normal, quiet breath. It represents the amount of air that moves in and out of the lungs with each resting respiratory cycle.

Question 13

What is vital capacity?
Solution: Vital capacity is the maximum volume of air that can be exhaled from the lungs after a maximal inhalation. It is a measure of the amount of air that can be moved in and out of the lungs, excluding the residual volume. Typical values are around 4800 cc for males and 3100 cc for females.

Question 14

What is heart rate?
Solution: Heart rate is defined as the number of times the heart beats or contracts in one minute. Under normal resting conditions, the average heart rate for an adult is approximately 72 beats per minute.

Common mistakes

  • Confusing anatomy (structure) with physiology (function).
  • Incorrectly identifying the strongest or hardest-working muscles.
  • Misremembering the exact number of bones in children versus adults.
  • Not clearly defining physiological terms like tidal volume or vital capacity.

Revision tips

  • Create flashcards for key definitions like anatomy, physiology, and muscle types.
  • Draw simple diagrams of the skeletal system and label major bones.
  • Practice explaining the difference between voluntary and involuntary muscles.
  • Review the physiological terms and their normal values or functions.

Practice MCQs

Q1. What is the primary focus of anatomy?

Q2. Which of the following is NOT a type of muscle mentioned in the chapter?

Q3. The smallest bone in the human body is located in the:

Q4. What does 'vital capacity' refer to in physiology?

Q5. How many bones does a typical adult human have?

Frequently asked questions

What is the difference between anatomy and physiology?

Anatomy is the study of the structure of the human body, while physiology is the study of the functions of the human body.

What are the main types of muscles discussed in this chapter?

The chapter discusses voluntary/skeletal/striated muscles, involuntary/smooth/spindle muscles, and cardiac muscles.

Which bone is the longest and which is the smallest in the human body?

The longest bone is the Femur (thigh bone), and the smallest bone is the stapes (ear bone).

What is the significance of vital capacity?

Vital capacity represents the maximum amount of air a person can exhale forcefully after a deep breath, indicating lung function.

How do the number of bones differ between a child and an adult?

A child is born with approximately 213 bones, which fuse over time to become 206 bones in an adult.

How can these NCERT solutions help in exam preparation?

These solutions provide clear, concise, and accurate answers to potential exam questions, helping students understand and memorize key concepts of anatomy and physiology.

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