Tag: body movement

Questions Related to body movement

Some osmoregulator like lobed fin fishes (Shark,rays,coelocanth)store organic compound within the body in order to increases $O.P$ of body fluid. These stored organ compound are-

biology body movement gait of animals basics of joints joints and type of joints

  1. $TMO$ and uric acid

  2. $T.M.O$ and urea

  3. Urea and Hippuric acid

  4. Allentoin and urea.

Show answer
Correct Option: A

Which of the following animal's body shows bilateral symmetry?

biology body movement gait of animals basics of joints joints and type of joints

  1. Starfish

  2. Jellyfish

  3. Earthworm

  4. Sponge

Show answer
Correct Option: A

The mallard duck possesses a keeled sternum. What is the function of this specialised bone structure?

biology body movement gait of animals basics of joints joints and type of joints

  1. To provide stability in water

  2. To provide a site of attachment for the large flight muscles

  3. To increase the body's surface area for heat exchange

  4. It is a weapon used in sexual competition between males

Show answer
Correct Option: B
Explanation:
A keel in bird anatomy is an extension of the sternum (breastbone) which runs axially along the midline of the sternum and extends outward, perpendicular to the plane of the ribs.
In birds, the sternum (typically) has a keel-like projection to which the pectoral muscles attach; these muscles provide the all-important downstroke in powered flight. In contrast, flightless birds lack a keeled sternum -- if you don't have big, strong flight muscles, you don't need a keel to attach them to.

The forelimbs of birds (or aves) are modified into 

biology body movement gait of animals basics of joints joints and type of joints

  1. Peak

  2. Neck

  3. Wings

  4. Legs

Show answer
Correct Option: C
Explanation:

the correct answer is 'wings'

Aves are popularly known as "Glorified Reptiles" in whom the forelimbs are modified to give rise to wings that aid the flight in them.
So the correct option is C.

Joint between metacarpals and phalanges is

biology body movement joints in the human body our skeletal system and the skin joints

  1. Ball and socket

  2. Pivot

  3. Saddle

  4. Hinge

Show answer
Correct Option: D
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. 
  • A hinge joint (ginglymus) is a joint in which the articular surfaces are molded to each other in such a manner as to permit motion only in one plane. It is a type of synovial joint. For example, joint between metacarpals and phalanges is hinge.
  • So,the correct answer is 'Hinge'.

Ginglymoid/hinge joint occurs in

biology body movement joints in the human body our skeletal system and the skin joints

  1. Elbow and shoulder

  2. Elbow and knee

  3. Atlas and odontoid process

  4. Knee and ankle

Show answer
Correct Option: B
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. 
  • A hinge joint (ginglymus) is a joint in which the articular surfaces are molded to each other in such a manner as to permit motion only in one plane.
  • The knee joint and elbow is a hinge joint/ ginglymoid i.e a type of synovial joint. 
  • So, the correct answer is 'Elbow and Knee'.

Largest synovial joint is

biology body movement joints in the human body our skeletal system and the skin joints

  1. Hip joint

  2. Knee joint

  3. Shoulder joint

  4. Ankle joint

Show answer
Correct Option: B
Explanation:

A synovial joint is a connection between two bones which consists of a cartilage lined cavity filled with fluid. The knee joint is the biggest synovial joint in the human body. At the junction of the knee, the large femur bone of the thigh connects to both the tibia and fibula of the leg, as well as to the patella or knee cap. So, the correct answer is 'Knee joint'.

Synovial fluid is present in

biology body movement joints in the human body our skeletal system and the skin joints

  1. Spinal cavity

  2. Cranial cavity

  3. Freely movable joints

  4. Fixed joints

Show answer
Correct Option: C
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.
  • Synovial joints are freely movable joint. Hence synovial fluid is present in freely movable joint.
  • So,the correct answer is 'Freely movable joints'.

Friction is lessened in ball-and-socket joint by

biology body movement joints in the human body our skeletal system and the skin joints

  1. Coelomic fluid

  2. Synovial fluid

  3. Pericardial fluid

  4. Mucin

Show answer
Correct Option: B
Explanation:

Synovial fluid is the pale yellow fluid that is present in every joint of the human body. It helps the bone able to slide past each other without causing damage to the ends of the bone. It means that synovial fluid lessens the friction in ball and socket joint. So, the correct answer is 'Synovial fluid'.