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 zoology movement and locomotion in man structure of skeletal muscle muscles and their structure skeletal muscles

Consider the following statements each with one or two blanks.
(i) Each half of pectoral girdle consists of a (A) and a (B) 
(ii) (C) is a condition of rapid spasms (wild contractions) in muscle due to low $Ca^{++}$ in body fluid.
(iii) Each organised skeletal muscle In our body is made of a number of (D) held together by a common collagenous connective tissue layer called (E) Which one of the following options correctly fills the blanks in any two of the statements ?

  1. (C) - Muscular dystrophy, (D) - fascia, (E) - fascicle

  2. (A) - clavicle, (B) - scapula, (C) - Tetany

  3. (A) - ilium, (B) - ischium, (D) - fascicles, (E) - fascia

  4. (C) - Myasthenia gravis, (D) - fascicles. (E) - fasda
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Each half of pectoral and pelvic girdle consist of clavicle & scapula, tetany is a condition of rapid spasms in muscle due to low calcium ion in body fluid.

So, the correct option is '(A) - clavicle, (B) - scapula, (C) - Tetany'.

Multiple choice biology animal tissue muscular tissues muscle tissue muscle tissues

Which of the following structures or materials is incorrectly matched with a tissue?

  1. Haversian system-bone

  2. Fibroblasts-skeletal,muscle

  3. Chondrin-cartilage

  4. Basement membrane-epithelium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A fibroblast is a type of cell that is responsible for making the extracellular matrix and collagen.

So, the correct option is 'Fibroblasts-skeletal,muscle'.

Multiple choice biology animal tissue muscular tissues muscle tissue muscle tissues

Tendons connect

  1. A muscle with a muscle

  2. A muscle with a bone

  3. A bone with another bone

  4. A bone with a ligament
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tendons connect muscles to bones. They are a type of connective tissue. They are strong with limited flexibility.

Multiple choice botany classical genetics variation and its type natural selection introduction to genetics

Height in humans is

  1. Somatogenic variation

  2. Discontinuous variation

  3. Continuous variation

  4. Both B and C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A.Somatogenic variation – These are acquired variations and non inheritable in nature. Eg:phenotypic plasticiy.

B.Discontinuous variations – These are responsible for the formation of a new species and the organism, thus, formed is called mutant. Eg:Mutations.

C.Continuous variations – These are fluctuating variations and cannot give rise to new species. Eg:Human height.

So, the correct option is ‘Continuous variations’.

Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

Which of the following is not a biological function of skeleton?

  1. Support

  2. Storage

  3. Excretion

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

  • The human skeleton is the internal framework of the body.
  •  It is composed of around 270 bones at birth this total decreases to around 206 bones by adulthood after some bones get fused together. 
  • The skeleton serves six major functions: support, movement, protection, production of blood cells, storage of minerals and endocrine regulation. Hence, Excretion is not a biological function of the skeleton.
So, the correct answer is 'Excretion'.

Multiple choice zoology excretory system of human disorders of excretory system disorders related to the excretory system functions and disorders of kidney

Renal rickets are bending of weight bearing long bones in

  1. Infants

  2. Young children

  3. Adolescents

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

Rickets is a condition especially due to deficiency of vitamin D which results in weak and soft bones in children. In Elderly patients, Rickets that occur due to chronic renal insufficiency is called Renal rickets. Renal rickets is bending of weight-bearing long bones in Elderly Persons. Bones become weak which results in bending of bone because excess calcium is lost through urine due to renal insufficiency.

So, the correct answer is 'Elderly persons'.

Multiple choice zoology neural control and coordination structure and function of spinal cord the spinal cord spinal cord

The location of filum terminale is

  1. In the skull

  2. In the thorax

  3. In the lumbar vertebrae

  4. In the pelvic girdle
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The spinal cord is the extension of the medulla oblongata that runs down through the foremen of magnum. The lowest part of the spinal cord is narrow and it is called the conus medullaris. The conus medullaris is present at the L$ _{1}$ vertebrae. The terminal part of the conus medullaris is a thread-like structure that is made up of fibrous connective tissue called the filum terminale. It is the non-nervous part of the spinal cord that can be seen in the lumbar vertebrae.

Hence, the correct answer is 'In the lumbar vertebrae'

Multiple choice zoology neural control and coordination structure and function of spinal cord the spinal cord spinal cord

Cauda equina is the part of

  1. Horse

  2. Tail of horse

  3. Spinal cord

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The spinal cord is a thick cord of the nervous tissue that forms the central nervous system along with the brain. It extends from the brain down through the spine and is protected within the bony vertebral column which is made of bones called the vertebrae. It ends at the second lumbar vertebrae. It is divided into the regions according to the vertebral column as cervical, thoracic and lumbar. The bunch of nerve fibres at the end of the spinal cord is called the cauda equina. It forms a horse tail-like structure. The nerves from this region supply to the pelvic region and lower limbs.

Hence, the correct answer is 'Spinal Cord'

Multiple choice biology locomotion and movement locomotion in animals bones and movements muscle contraction types of muscles muscles

Upon stimulation of skeletal muscles, calcium is immediately made available for binding to troponin from :

  1. Blood

  2. Lymph

  3. Sacroplasmic reticulum

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

Answer is option C i.e. "Sacroplasmic reticulum"
Neurotransmitter acetylcholine generates an action potential in the sarcolemma causing the release of calcium ions into the sarcoplasm from the sarcoplasmic reticulum.
When Ca++ level increases it leads to the binding of calcium with a sub-unit of troponin on actin(thin) filaments and thereby activating the movement.

Multiple choice biology movement and locomotion in man locomotion in animals bones and movements muscle contraction

The term "innominate" is used for?

  1. A bone and an artery

  2. A bone and a vein

  3. A bone and a nerve

  4. A vein and a nerve
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The term innominate means unnamed or anonymous. It is often used to refer to certain anatomical structures that have a descriptive name rather than precise ones. In humans this termed is used to refer to the hip bone and brachiocephalic artery.
Hence, the correct answer is 'A bone and an artery'.