Tag: movement and locomotion in man

Questions Related to movement and locomotion in man

Exoskeleton is mesodermal in

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

  1. Mammals

  2. Birds

  3. Fishes

  4. Fishes, crocodiles and chelones

Show answer
Correct Option: A
Explanation:
  • The protective or supporting structure covering the outside of the body of many animals is called the exoskeleton. 
  • The exoskeleton is mesodermal in mammals.
  • So, the correct answer is 'Mammals'

The term "innominate" is used for?

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

  1. A bone and an artery

  2. A bone and a vein

  3. A bone and a nerve

  4. A vein and a nerve

Show answer
Correct Option: A
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'.

Animals can be distinguished in to chordates and non chordates depending on presence and absence of _________.

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

  1. Three germ layers

  2. Mesoderm

  3. Notochord

  4. Both B and C

Show answer
Correct Option: C
Explanation:

The animals having notochord further develop a skeleton as in vertebrates. Animals without notochord have no skeleton as in invertebrates.

An example of chitinous exoskeleton is

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

  1. Oriole

  2. Sea stars

  3. Clam

  4. Honeybee

  5. Earthworm

Show answer
Correct Option: D
Explanation:

  • A tough, semitransparent substance that is the main component of the exoskeletons of arthropods, such as the shells of crustaceans and the outer coverings of insects(honey bee). 
  • Chitin is also found in the cell walls of certain fungi and algae. Chemically, it is a nitrogenous polysaccharide (a carbohydrate). Hence, An example of a chitinous exoskeleton is Honeybee.
So, the correct answer is 'Honeybee'.

Endoskeleton of cell is

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

  1. Cell wall

  2. Endoplasmic reticulum

  3. Cytoplasm

  4. Mitochondria.

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Correct Option: B

Cockroaches have an outer skeleton.

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

  1. True

  2. False

Show answer
Correct Option: A
Explanation:
An exoskeleton is the external skeleton that supports and protects an animal's body. Examples of animals with exoskeletons include insects such as grasshoppers and cockroaches, and crustaceans such as crabs and lobsters.
Cockroaches are winged insects found in nearly every part of the world. Like most other insects, cockroaches have an exoskeleton, meaning their skeleton is located on the outside of their bodies. They have three simple body parts: the head, thorax, and abdomen.
Hence, the answer is true.

Which one of the cartilage helps in early birth of a child,
without damage to the pelvic girdle

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

  1. Hyaline cartilage

  2. Elastic cartilage

  3. Calcified cartilage

  4. Fibrous cartilage

Show answer
Correct Option: D
Explanation:

During the birth of child pubic symphysis which is made up of fibrous cartilage relaxes inaeasing`the space for the exit of the child.

Which joint is more flexible in males than females?

zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

  1. Public symphysis

  2. Deltoid ridge

  3. Deltoid tuberosity

  4. Sacroiliac joint

Show answer
Correct Option: A
Explanation:

The hip girdle is located in the lower part of the trunk. 

It is made up of three bones that are upper ileum, lower ischium and the pubis.
The acetabulum is formed by ileum, ischium and pubis but in mammals, the pubis is replaced by the cotyloid bone.

The pubic symphysis is present in mammals. The two innominate bones and sacrum together form a sort of bowel.
This is also an adaptation for the upright posture of the human body. The female pelvis is larger and has a broader front and larger bottom opening than the male pelvis. This is an adaptation for childbirth.

So, the correct option is 'Public symphysis'

Collar bone is 

zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

  1. Scapula

  2. Stapes

  3. Coracoid

  4. Clavicle

Show answer
Correct Option: D
Explanation:

The clavicle is a long bone between the shoulder blade and the sternum and is known as the collar bone. They are called so because their presence seems to appear much like a collar. 


So, the correct answer is 'clavicle'.

Supination means turning plan

zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

  1. Upward

  2. Forward

  3. Downward backward

  4. Bending

  5. Straightening

Show answer
Correct Option: A
Explanation:

Pronation and supination are a pair of unique movements possible only in the forearms and hands, allowing the human body to flip the palm either face up or face down. The muscles, bones, and joints of the human forearm are specifically arranged to permit these unique and important rotations of the hands. So, the correct option is "A" (Upward).