Biology · General Awareness

Skeletal and Muscular System

1,098 Questions

The skeletal and muscular system is a core topic in human biology. It covers the structure and function of bones, joints, and muscles. These concepts frequently appear in general science sections of various competitive exams. Master this topic to score higher.

Types of jointsHuman body bonesSkeletal fracturesMuscle anatomy

Skeletal and Muscular System Questions

Multiple choice

areolar connective tissue joins:

  1. bones with muscles

  2. fat body with muscles

  3. bones with bones

  4. integuments with muscles
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Areolar connective tissue is a loose connective tissue that serves as a reservoir of water and salts for surrounding tissues. It binds the outer integument (skin) to the underlying muscles, providing flexibility and support.

Multiple choice

tendon is made up :

  1. areolar tissue

  2. adipose tissue

  3. modified yellow elastic fibrous tissue

  4. modified white fribous tissue
Reveal answer Fill a bubble to check yourself
D Correct answer
Multiple choice

How many bones does a human infant have

  1. 300

  2. 400

  3. 500

  4. 200
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Human infants are born with approximately 300 bones. As they grow, many of these bones fuse together to form the 206 bones found in an adult skeleton.

Multiple choice

Antlers are modified ___________.

  1. hair

  2. bone

  3. cartilage
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Antlers are true bone structures that grow from the pedicles on the skull. They are shed and regrown annually.

Multiple choice zoology respiratory system of human mechanism of respiration respiratory cycle breathing and exchange of gas

In human beings, rib case and sternum move upwardly and outwardly during.

  1. Exercise

  2. Sudden back injury

  3. Expiration

  4. Inspiration
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

During inspiration, the contraction of the diaphragm and external intercostal muscles increases the thoracic cavity volume. This movement causes the rib cage and sternum to move upward and outward.

Multiple choice biology body movement joints in the human body our skeletal system and the skin joints

Ginglymoid/hinge joint occurs in

  1. Elbow and shoulder

  2. Elbow and knee

  3. Atlas and odontoid process

  4. Knee and ankle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Joints are points of contact between bones, or between bones and cartilages.
  • Synovial joints are characterized by the presence of a fluid-filled synovial cavity between the articulating surfaces of the two bones. These joints help in locomotion and many other movements. 
  • A hinge joint (ginglymus) is a joint in which the articular surfaces are molded to each other in such a manner as to permit motion only in one plane.
  • The knee joint and elbow is a hinge joint/ ginglymoid i.e a type of synovial joint. 
  • So, the correct answer is 'Elbow and Knee'.
Multiple choice biology body movement joints in the human body our skeletal system and the skin joints

Largest synovial joint is

  1. Hip joint

  2. Knee joint

  3. Shoulder joint

  4. Ankle joint
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A synovial joint is a connection between two bones which consists of a cartilage lined cavity filled with fluid. The knee joint is the biggest synovial joint in the human body. At the junction of the knee, the large femur bone of the thigh connects to both the tibia and fibula of the leg, as well as to the patella or knee cap. So, the correct answer is 'Knee joint'.

Multiple choice biology body movement joints in the human body our skeletal system and the skin joints

Synovial fluid is present in

  1. Spinal cavity

  2. Cranial cavity

  3. Freely movable joints

  4. Fixed joints
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Joints are points of contact between bones, or between bones and cartilages.
  • Synovial joints are characterized by the presence of a fluid-filled synovial cavity between the articulating surfaces of the two bones. These joints help in locomotion and many other movements.
  • Synovial joints are freely movable joint. Hence synovial fluid is present in freely movable joint.
  • So,the correct answer is 'Freely movable joints'.
Multiple choice biology body movement joints in the human body our skeletal system and the skin joints

Friction is lessened in ball-and-socket joint by

  1. Coelomic fluid

  2. Synovial fluid

  3. Pericardial fluid

  4. Mucin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Synovial fluid is the pale yellow fluid that is present in every joint of the human body. It helps the bone able to slide past each other without causing damage to the ends of the bone. It means that synovial fluid lessens the friction in ball and socket joint. So, the correct answer is 'Synovial fluid'.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Bone part that undergoes necrosis in alcoholics is

  1. Head of femur

  2. Shaft of femur

  3. Vertebrae

  4. Carpals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Alcoholic persons suffer from a disease of necrosis of bone called osteonecrosis or avascular necrosis. It is the death of bone tissue due to which head of femur collapse. Alcohol can cause accumulation of fatty acids because it interferes with their breakdown. Accumulation of fatty acids in blood vessels can lead to decreased rate of blood supply to the bone tissue. This causes necrosis of head of femur.
So, the correct answer is 'Head of femur'. 
Multiple choice

What is the term for the gradual loss of bone mass that occurs with age?

  1. Osteoporosis

  2. Osteopenia

  3. Sarcopenia

  4. Kyphosis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Osteoporosis is a condition characterized by decreased bone density and increased risk of fractures. It is a common problem among older adults, especially women.

Multiple choice

What is the term for the curvature of the spine that can occur with age?

  1. Kyphosis

  2. Lordosis

  3. Scoliosis

  4. Spondylosis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Kyphosis is a condition characterized by an exaggerated curvature of the spine, causing a humpback appearance. It is a common problem among older adults and can be caused by a variety of factors, including osteoporosis and degenerative changes in the spine.

Multiple choice

What is the term for the condition in which the bones become weak and brittle, increasing the risk of fractures?

  1. Osteoporosis

  2. Sarcopenia

  3. Arthritis

  4. Neuropathy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Osteoporosis is a condition in which the bones become weak and brittle, increasing the risk of fractures.