Tag: our skeletal system and the skin

Quizzes (6) Questions (275)

Questions Related to our skeletal system and the skin

Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

In the middle lateral side a cup shaped cavity or acetabulum (for head of femur) is present in the region of union of

  1. Ilium and ischium

  2. Ilium and pubis

  3. Ilium, ischium and pubis

  4. Ischium and pubis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The hip joint is a synovial joint formed by the articulation of the rounded head of the femur and the cup-like acetabulum of the pelvis. The cup-like acetabulum forms at the union of three pelvic bones - the ilium, pubis, and ischium. 

So, the correct option is C. (ilium, ischium and pubis)

Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

Bones act as ________ during locomotion.

  1. Levers

  2. Fulcrum

  3. Pulleys

  4. Points
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bones provide a supporting structure for the body. It gives a framework to the body that helps in maintaining the shape to the body and they also provide surface so that muscles can be attached. Further. bones act as a lever during locomotion so it is able to turn one axis.
Hence , option  A ( Levers ) is correct.

Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

A cup shaped cavity for articulation of femur head is

  1. Acetabulum

  2. Glenoid cavity

  3. Sigmoid notch

  4. Obturator foramen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones ilium, ischium and pubis. At the point of fusion of the above bones is a cup shaped cavity called as acetabulum to which the thigh bone articulates. The two halves of the pelvic girdle meet ventrally to form the pubic symphysis containing fibrous cartilage.

Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

Which one is the bone of fore limb?

  1. Humerus

  2. Femur

  3. Tibia

  4. Fibula
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The bones of the limbs along with their girdles constitute the appendicular skeleton. Each limb is made of 30 bones. The bones of the hand (fore limb) are humerus, radius and ulna, carpals (or wrist bones 8 in number), metacarpals (palm bones, 5 in number) and phalanges (digits 14 in number).

Multiple choice biology our skeletal system and the skin skeleton skeleton, joints and muscles skeleton - movement and locomotion

Longest bone of human skeleton is

  1. Femur

  2. Humerus

  3. Tibia

  4. Radius
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In humans, each limb is made of 30 bones. The bones of the legs (hind limb) are femur (thigh bone, the longest bone), tibia and fibula, tarsals (ankle bones 7 in number), metatarsals (5 in number) and phalanges (digits 14 in number). A cup-shaped bone, called as patella covers the knee ventrally (knee cap).

Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

Patella groove is found on which bone of the following?

  1. Femur

  2. Tibio-fibula

  3. Depression between femur and tibia-fibula

  4. Tarsus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The bone surface is not smooth but scarred with bumps, holes and ridges. These are surface markings, where muscles, tendons and ligaments attached, blood and lymph vessels and nerves pass. Depression and openings are
(1) Fissure- narrow, cleft like opening between adjacent parts of bone. Example, Supra of orbital fissure.
(2) Foramen- a bigger, round opening. Example, foramen magnum.
(3) Meatus- a relatively narrow tubular canal. Example, external auditory meatus .
(4) Groves and sulcus- are deep furrow on the surface of a bone or other structure. Example, inter-vertebral and radial grooves of humerus.
(5) Fossa- shallow depressed area. Example, mandibular fossa.

Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

Structure responsible for formation of semilunar notch is

  1. Olecranon process of humerus

  2. Olecranon process of femur

  3. Olecranon process of radius ulna

  4. Olecranon process of tibia fibula
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The semilunar notch or the trochlear notch as it is commonly referred to is a  greater sigmoid cavity formed by a large depression in the upper extremity of the ulna. This fits the trochlea of the humerus and becomes  a part of the elbow joint. This is formed by the olecranon and the coronoid process. Thus, the correct answer is option C.

Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

Greater trochanter occurs in

  1. Humerus

  2. Radius

  3. Ulna

  4. Femur
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The greater trochanter (great trochanter) of the femur is a large, irregular, quadrilateral eminence and a part of the skeletal system.
It is directed lateral and medially and slightly posterior. In the adults, it is about 1 cm lower than the head. Because the pelvic outlet in the female is larger than in the male, there is a greater distance between the greater trochanters in the female.
It has two surfaces and four borders. It is a traction epiphysis.
Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

Olecranon process occurs in

  1. Femur

  2. Radius

  3. Humerus

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

In humans, each limb is made of 30 bones. The bones of the hand (forelimb) are humerus, radius and ulna, carpals (wrist bones 8 in number), metacarpals (palm bones 5 in number) and phalanges (digits 14 in number). Olecranon process is the process of the ulna that forms the outer bump of the elbow and fits into the fossa of the humerus when the arm is extended.

So, the correct answer is option D.