Tag: skeleton

Quizzes (2) Questions (40)

Questions Related to skeleton

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.

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

Number of bones present in forelimb of human is

  1. 30

  2. 32

  3. 35

  4. 40
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 (forelimb) are humerus, radius and ulna, carpals (wrist bones 8 in number), metacarpals (palm bones 5 in number) and phalanges (digits 14 in number).

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

Besides calcium phosphate, the bones contain

  1. Calcium chloride

  2. Magnesium carbonate

  3. Sodium chloride

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

The salts of magnesium and calcium forms an integral part of the skeletal system. Magnesium combines with phosphates, to form magnesium phosphate which contributes to the bone density. It forms major part of dry matter of bones. Osteoporosis is caused, due to the decrease in the density of calcium and magnesium salts in the body. It also helps in muscle contraction. 60% of the total magnesium are present in the bones.
So, the correct option is D.

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

The shoulder blade is made up of

  1. Clavicle

  2. Humerus

  3. Ilium

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

The human shoulder is made up of three bones: the clavicle also known as collarbone, the scapula also known as shoulder blade, and the humerus.

Scapula connects the humerus with the clavicle. It is a flat bone, almost triangular in shape. There are many important muscles like Pectoralis Minor, Trapezius, Deltoid, Teres Minor and Teres Major are joined with Scapula. Hence option D is correct.