Tag: basics of joints

Questions Related to basics of joints

Joints between human skull bones are

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Saddle

  2. Gliding

  3. Imperfect

  4. Immovable

Show answer
Correct Option: D
Explanation:
A. Saddle joint allows movement on many directions and is present between carpals and metacarpals of the human thumb.
B. Gliding joint allows movement only in one direction and is present between tarsal and carpals.
C. Imperfect joint or Cartilaginous joint are joined together with the help of a disc of cartilage which restricts the movement and shows limited or slight movement and is present between the adjacent vertebrae of the vertebral column and in pubic symphysis.
D. The immovable joint does not allow any movement because the bones are firmly fixed together by strong collagen fibers and are present in the skull bones called as sutures.
So, the correct option is D.

A shallow depression in the scapula which receives the head of the upper arm bone is known as the?

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Acetabulum

  2. Neural arch

  3. Glenoid cavity

  4. Olecranon fossa

Show answer
Correct Option: C
Explanation:
The glenoid cavity of scapula is a part of the shoulder. It is a shallow, pyriform articular surface, which is located on the lateral angle of the scapula.
So correct answer is option C.Glenoid cavity.

Synovial fluid is secreted by

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Blood

  2. Cartilage

  3. Bone

  4. Synovial membrane

Show answer
Correct Option: D
Explanation:

Membranes are thin pliable layers of epithelial and/or connective tissue. They line body cavities, cover surfaces, connect, or separate regions, structures and organs of the body. 

The three kinds of membranes are mucous, serous and synovial. 
Synovial membrane, unlike to other membranes does not contain epithelium. Therefore, it is not the epithelial membrane. It lines the cavities of the freely movable joints. Like serous membrane, it lines structures, that do not open to the exterior. Synovial membranes secrete the synovial fluid that lubricates articular cartilage at the ends of bones as they move at joints.

Sacroiliac joint is

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Movable

  2. Immovable

  3. Imperfect

  4. None of the above

Show answer
Correct Option: B
Explanation:
The sacroiliac joint connects the sacrum (triangular bone at the bottom of the spine) with the pelvis (iliac bone, that is part of the hip joint) on each side of the lower spine. It transmits all the forces of the upper body to the pelvis and legs. There is not a lot of motion in the joint and it is very strong and stable.

In humans, the joint between bones of skull is

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Fibrous joint

  2. Hinge joint

  3. Synovial joint

  4. None of the above

Show answer
Correct Option: A
Explanation:

According to functional classification joints may be immovable (synarthrosis), slightly movable (amphiarthrosis) and freely movable (diarthrosis). 

According to structure joints can be classified into, fibrous, cartilaginous and synovial. 
In fibrous joints, fibrous connective tissue unites articulating bones. No joint cavity is present. They are mostly immovable or slightly movable. 
Sutures (literal meaning to stitch), are immovable joint found between skull bones. 
There are four main sutures in the skull- 
(a) Coronal suture: between the frontal and the two parietal bone. 
(b) Sagittal suture: between the two parietal bones. 
(c) Lambdoidal suture: between parietal and occipital bone. 
(d) Squamosal suture: between parietal bone and temporal bone.

Synovial fluid is present in

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Spinal canal

  2. Cranial cavity

  3. Freely movable joints

  4. All of the above

Show answer
Correct Option: C
Explanation:

The movability of the joints varies depending on different factors. Joints have been classified into three major structural forms, namely, fibrous, cartilaginous and synovial. Synovial joints are characterised by the presence of a fluid-filled synovial cavity between the articulating surfaces of the two bones. Such an arrangement allows considerable movement. These joints help in locomotion and many other movements.

Which of the following pairs is correctly matched?

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Fibrous joint- Between phalanges

  2. Cartilaginous joint- Skull bones

  3. Gliding joint- Between zygapophyses of the successive vertebrae

  4. Hinge joint- Between vertebrae

Show answer
Correct Option: C
Explanation:

Gliding joint is a type of synovial joint, which allows movement of bone about three axes. Gliding joint is essentially flat circular surface and permits movement within narrow limits. Examples of gliding joint are between articular surfaces (zygapophyses) of vertebrae, acromioclavicular joint, some carpals and tarsal bones.

Joint between bones of human skull is

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Hinge joint

  2. Synovial joint

  3. Cartilaginous joint

  4. Fibrous joint

Show answer
Correct Option: D
Explanation:

According to the structure, the joints can be classified into- fibrous, cartilaginous and synovial. 

Fibrous connective tissue unites articulating bones without any joint cavity. Fibrous joints are mostly immovable, some slightly movable usually synarthrosis. 
The suture is found only in the skull. It is a fibrous tissue between articulating bones in children but permanently fused in adults. Thus there is some movement in fetuses and young children but immovable in adults.

Friction is lessened in ball and socket joint by

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Coelomic fluid

  2. Synovial fluid

  3. Pericardial fluid

  4. Mucin

Show answer
Correct Option: B
Explanation:

Synovial joints are characterised by the presence of a fluid filled in synovial cavity, between the articulating surfaces of the two bones. Such an arrangement allows considerable movement by reducing friction between bones. These joints help in locomotion and many other movements. Ball and socket joint (between humerus and pectoral girdle), hinge joint (knee joint), pivot joint (between atlas and axis), gliding joint (between the carpals) and saddle joint (between carpal and metacarpal of thumb) are some examples.

Sutural joints are present between

zoology musculo - skeleton system gait of animals basics of joints joints and type of joints skeleton, joints and muscles

  1. Thumb and metatarsal

  2. Humerus and radio-ulna

  3. Parietals of skull

  4. Glenoid cavity and pectoral girdle

Show answer
Correct Option: C
Explanation:

Sutures, meaning to stitch, are immovable joint found between skull bones. 

There are four main sutures in the skull-
a) Coronal suture: between the frontal and the two-parietal bones.
b) Sagittal suture: between the two parietal bones.
c) Lambdoidal suture: between parietal and occipital bone.
d) Squamosal suture: between parietal bone and temporal bone.