Biology · General Awareness
Skeletal and Muscular System
1,141 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
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Nail plate
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Nail bed
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Lunula
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Nail sinus
C
Correct answer
Explanation
The crescent-shaped area at the base of nail is called the lunula (small moon). It is the visible part of the matrix at the base of the visible nail.
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Nail plate
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Nail sinus
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Nail bed
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Nail matrix
B
Correct answer
Explanation
The root of the nail lies at nail sinus, i.e. the base of nail underneath the skin.
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Marasmus
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Lung cancer
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Scurvy
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Rickets
D
Correct answer
Explanation
Vitamin D deficiency weakness chest bone leading to deformity called pigeon chest.
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pterion
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Glabella
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Lambda
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Bregma
D
Correct answer
Explanation
It is a point on the surface of the skull at the junction of the coronal and sagittal sutures. Here the coronal suture is intersected perpendicularly by the sagittal suture.
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sphenoid bone
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ethmoid bone
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nasal bones
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lacrimal bone
A
Correct answer
Explanation
The sella turcica is found on the surface of the sphenoid bone. It is a structure in the skull that supports the pituitary gland.
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deltoid tuberosity
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groove for radial nerve
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bicipital groove
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olecranon fossa
B
Correct answer
Explanation
The groove for radial nerve lies on the posterior facet of shaft of humerus. It is a shallow groove descending laterally and posteriorly carrying the radial nerve distally.
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Tendons
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Ligaments
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Cartilages
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Pivot joint
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Flexor muscles
C
Correct answer
Explanation
Cartilages are found between two or more bones. They prevent bones from rubbing against each other.
Match the following joints with their locations?
| |
|
| a. Pivot joint |
1. Knee |
| b. Hinge joint |
2. Shoulder |
| c. Balland socket joint |
3. Neck |
|
4. Elbow |
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a <span style="font-family:" arial;="" font-size:="" small;="">- 1, b <span style="font-family:" arial;="" font-size:="" small;="">- 2, c <span style="font-family:" arial;="" font-size:="" small;="">- 3 & 4
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a <span style="font-family:" arial;="" font-size:="" small;="">- 3, b <span style="font-family:" arial;="" font-size:="" small;="">-1 & 4, c <span style="font-family:" arial;="" font-size:="" small;="">- 2
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a <span style="font-family:" arial;="" font-size:="" small;="">- 1 & 4, b <span style="font-family:" arial;="" font-size:="" small;="">- 3, c <span style="font-family:" arial;="" font-size:="" small;="">- 2
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a <span style="font-family:" arial;="" font-size:="" small;="">- 1, b <span style="font-family:" arial;="" font-size:="" small;="">- 2 & 4, c <span style="font-family:" arial;="" font-size:="" small;="">- 3
B
Correct answer
Explanation
Pivot joints are present in neck, hinge joint is present in knee and elbow, and Ball and socket joints are present in hip and shoulder.
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Knee
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Elbow
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Shoulder
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Neck
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Hip
D
Correct answer
Explanation
Pivot joints make twisting movement possible. It is a pivot joint that lets your neck from side to side.
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Pivot
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Hinge
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Ball and socket
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Fixed
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Partially movable
B
Correct answer
Explanation
Hinge joint allows movement only in one direction. For example the knee and elbow can bend and straighten, but cannot rotate.
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the solution is deposited alongside the periosteum
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the solution is deposited above the periosteum
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the solution is deposited below the periosteum
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the solution is deposited in the periosteum
A
Correct answer
Explanation
The solution is deposited alongside the periosteum and not above the periosteum. The success of these injections depends on the diffusion of the anesthetic solution through the periosteum and into the underlying bony structure to come in contact with the nerves therein.
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Cursorial adaptations - Limb bones elongated
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Fossorial adaptations - Developed shoulder girdle
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Arboreal adaptations - Webbed feet
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Volant adaptations - Fusion of certain bones
B
Correct answer
Explanation
Fossorial adaptations - Developed shoulder girdle. Fossorial adaptations are observed in those animals that live above ground but they dig for the food. Such adaptation is not characterized with developed shoulder girdle.
Match the following:
| |
|
| a. Stigma |
1. It is the middle part of the carpel. |
| b. Style |
2. It is the top part of the carpel. |
| c. Ovary |
3. It is the swollen part at the bottom of the carpel. |
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a - 2, b - 1, c - 3
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a - 2, b - 3, c - 1
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a - 3, b - 2, c - 1
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a - 1, b - 2, c - 3
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a - 3, b - 1, c - 2
A
Correct answer
Explanation
This is the correct option. Stigma is the top part of the carpel. Style is the middle part of the carpel. Ovary is the swollen part at the bottom of the carpel.
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Chest
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Bones
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Stomach
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Muscles
B
Correct answer
Explanation
Rickets is a condition that affects bone development in children.
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stapes
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hyoid
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incus
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malleus
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sternum
B
Correct answer
Explanation
Yes, it is correct. The U-shaped bone present at the base of the buccal cavity and also included in the skull, is called hyoid.