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

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 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'.

Multiple choice zoology biodiversity and its classifications vertebrates characteristics of vertebrates classification of organisms

Which one is not characteristic feature of subphylum vertebrata?

  1. Dorsal tubular nerve chord

  2. Ventral muscular heart

  3. Notochord in adult

  4. Kidneys

  5. Lateral appendages
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Vertebrates are also known as Euchordates. They are advanced chordates. Characteristics of phylum vertebrates are:
  • Notochord is present only in embryonic stages and in adults, it is replaced by vertebral column or backbone.
  • The heart is ventrally placed and is usually with hepatic portal system.
  • The excretory organs are paired kidneys.
  • Skin is covered by a protective skeleton which consists of lateral appendages, hair, feathers etc.
Hence, notochord in adult is not a characteristic feature of subphylum vertebrata. So, the correct answer is 'Notochord in adult'.
Multiple choice zoology biodiversity and its classifications vertebrates characteristics of vertebrates classification of organisms

What is the basis of classification of vertebrata into sub groups?

  1. Notochord

  2. Vertebral column

  3. Organs of respiration

  4. Organs of reproduction
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vertebrata is a class of organisms containing notochord and vertebral column.

These organisms are divided into subgroups by modes of respiration. For example, fishes breathe through gills, amphibians through the skin, birds through air sacs and mammals through the lungs.
Organs of reproduction are the same in all the animals, though the mode of reproduction may vary.
So, the correct option is C.

Multiple choice zoology biodiversity and its classifications vertebrates characteristics of vertebrates classification of organisms

Vertebral column is derived from which of the following structures?

  1. Notochord

  2. Dorsal nerve cord

  3. Ventral nerve cord

  4. Outgrowth of cranium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All chordates are characterised by three primary chordate features the presence of a notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits. The notochord, later on, gives rise to a bony vertebral column, which surrounds and protects the spinal cord. So, the correct answer is option B.

Multiple choice biology structural organization of animals structural organization of rabbit structural organization of leech phylum annelida

Pelvic girdle of rabbit consist of
                           Or
The coal of the Pelvic girdle is formed by the fusion of


  1. Ilium, ischium & pubis

  2. Ilium, ischium & coracles

  3. Coracoid, scapula & clavicle

  4. Ilium, coracles & scapula
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pelvic girdle comprises of the usual three bones ilium, ischium and pubis which are fused together into a single innominate or hip bone.

Multiple choice botany leaf - external morphology venation arrangement of leaves morphology of leaf

In Musa, the venation is

  1. Unicostate reticulate

  2. Unicostate parallel

  3. Multicostate reticulate

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

Venation is the arrangement of veins on the leaves. It is basically of 2 types, reticulate and parallel. Reticulate venation involves irregular distribution of veins to form a network. Parallel venation involves the veins running parallel to each other. In pinnate or unicostate venation, the lamina has a single principal vein or midrib. It produces lateral veins. In palmate or multicostate venation, lamina has more than one principal vein. In Musa, the venation is unicostate parallel. 

Thus, the correct answer is 'Unicostate parallel.'