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

What is the difference between a lobster's exoskeleton and a human skeleton?

  1. exoskeletons are on the outside; skeletons are on the inside

  2. exoskeletons are harder than a human skeleton

  3. exoskeletons are on the inside; skeletons are on the outside

  4. exoskeletons provide support; human skeletons do not
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lobsters have an exoskeleton (on the outside), while humans have an endoskeleton (on the inside).

Multiple choice

Where are the three smallest bones in the human body?

  1. Your toes

  2. Your spine

  3. Your fingers

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

The three smallest bones in the human body are the malleus, incus, and stapes, which are located in the middle ear. They are essential for transmitting sound vibrations.

Multiple choice zoology option a: neurobiology and behaviour structure and function of ear perception of stimuli neural control and coordination

The middle ear and internal ear of mammals are enclosed in which of the following bones __________________.

  1. Tympanic bulla and periotic bone (Temporal bone)

  2. Ethmoid

  3. Tympanic bulla

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

The auditory bulla (pl. bullae) is a hollow bony structure on the ventral, posterior portion of the skull that encloses parts of the middle and inner ear. In most species, it is formed by the tympanic part of the temporal bone.

Multiple choice

Where is the smallest bone in the body?

  1. Ear

  2. Nose

  3. Toe

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

The stapes, also known as the stirrup, is the smallest and lightest bone in the human body. It is located in the middle ear.

Multiple choice zoology grades of body organisation characteristics of annelida and arthropoda characteristics of platyhelminthes and aschelminthes basis of classification in animals basis of the classification of animals criteria for animal classification

The evolution of this structure lead to the human lineage.

  1. Bone

  2. Cranium

  3. Jaws

  4. Notochord

  5. Vertebrae
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The notochord is the defining structure forming in all chordate embryos. In humans beings, the notochord is formed in the third week and eventually replaced by the vertebral column. 

Multiple choice disorders of muscular system disorders of muscle and skeleton movement and locomotion in man locomotion and movements biology

Select the correct statement with respect to locomotion in human:

  1. The joint between adjacent vertebrae is a fibrous joint

  2. A decreased level of progesterone cause osteoporosis in old people

  3. Accumalation of uric acid crystals in joints cause their inflammation
  4. The vertebral column has $10$ thoracic vertebrae
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Locomotion is the process of movement of an organism from one place to another.

  • The fibrous joint is a fixed joint and is present in the bones of the skull while the synovial joint is present in the bones of the vertebrae making it movable.
  • Progestrone is a hormone responsible for the menstruation cycle and pregnancy.
  • The process of accumulation of the uric acid in the form of crystals at the place of joints causes inflammation and joint pain, this condition is termed as gout.
  • The vertebral column has 33 vertebrae out of which 27 presacral vertebrae, 7 cervical, 12 thorasic, and 5 lumbar vertebrae are found.

So, the correct option is 'Accumulation of uric acid crystals in joints cause their inflammation'

Multiple choice disorders of muscular system disorders of muscle and skeleton movement and locomotion in man locomotion and movements biology

Still disease is a type of

  1. Arthritis

  2. Rickets

  3. Sprain

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

Still's disease is an inflammation of joints causing arthritis which produces symptoms such as fever, rash, and joint pains. If it is not treated, the inflammation may destroy joints particularly the wrist joints. Steroids are used in treating this rare disease.

So, the correct answer is 'Arthritis'

Multiple choice biology movement and locomotion in man types of muscles muscles muscles and their structure muscle contraction

Largest muscle of human body is

  1. Stapedium

  2. Quadriceps

  3. Gluteus maximus

  4. Masseter
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The gluteus maximus is the largest muscle in the human body. These muscles help move the hips and thighs and also keep the trunk of the body in upright position. These muscles work against the gravity when we are walking up stairs. So, the correct answer is 'Gluteus maximus'.

Multiple choice biology movement and locomotion in man types of muscles muscles muscles and their structure

Standing on tip toe is an example of

  1. Elevation

  2. Flexion

  3. Extension

  4. Retraction
Reveal answer Fill a bubble to check yourself
A 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. The hinge joint is a type of synovial joint.
  • extension refers to movement in the posterior direction. For example, when standing up, the knees are extended.
  • Hence standing on tiptoe(HINGE JOINT AT ANKLE) is an example of an extension.
  • So, the correct answer is 'Elevation'.
Multiple choice biology movement in animals types of muscles muscles muscles and their structure muscle contraction

Total number of muscles in human body comes in the range of

  1. 440-550

  2. 640-850

  3. 1150-1500

  4. More than 2000
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Muscle is a  bundle of fibrous tissue in a body that has the ability to contract, producing movement in or maintaining the position of parts of the body.
  • The total number of muscles in the human body comes in the range of 640-850.
  • So,the correct answer is '640-850'
Multiple choice zoology skeleton - movement and locomotion types of muscles muscles muscles and their structure

Gastrocnemius muscles are found in

  1. Fore arm

  2. Chest

  3. Thigh

  4. Shank
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • The two major types of muscles that make up the calf (back portion of the lower leg) are gastrocnemius and soleus muscle.
  • Along with the soleus muscle, the gastrocnemius forms half of the calf muscle. Its function is plantar flexing the foot at the ankle joint and flexing the leg at the knee joint.
  • Hence gastrocnemius muscles are found in shank(a person's leg, especially the part from the knee to the ankle).
  • So, the correct answer is 'Shank'.