Locomotion and Movement MCQs

Identify the correct statements concerning the divisions of the human skeleton:

I. The skeleton is grouped into two principal divisions: axial skeleton and appendicular skeleton.
II. The axial skeleton comprises 126 bones distributed along the main longitudinal axis of the body.
III. The skull, vertebral column, sternum, and ribs constitute the axial skeleton.
IV. Limb bones and their supporting girdles form the appendicular skeleton.

Select the correct statements regarding the human skull bones:

I. The skull is composed of two sets of bones: cranial and facial, totaling 22 bones.
II. Cranial bones are 8 in number and form the hard, protective outer covering (cranium).
III. The facial region is made up of 14 skeletal elements forming the front part of the skull.
IV. A single U-shaped bone called the hyoid is present at the roof of the buccal cavity and is excluded from skull counts.

Which of the following statements about the middle ear ossicles and skull articulation are correct?

I. Each middle ear contains three tiny bones: malleus, incus, and stapes.
II. The ear ossicles are collectively referred to as the auditory capsule.
III. The skull region articulates with the superior region of the vertebral column with the help of two occipital condyles.
IV. Because of its articulation mechanism, the human skull is characterized as monocondylic.

Read the following statements regarding the human vertebral column:

I. The vertebral column is formed by 26 serially arranged, dorsally placed units called vertebrae.
II. Each vertebra has a central hollow portion (neural canal) through which the spinal cord passes.
III. The first vertebra is the axis, which articulates directly with the occipital condyles.
IV. The vertebral column extends from the base of the skull and constitutes the main framework of the trunk.

Which of the following statements regarding the regional differentiation of the vertebral column are true?

I. The vertebral column is differentiated into cervical (7), thoracic (12), lumbar (5), sacral (5-fused), and coccygeal (4-fused) regions.
II. In adults, the sacral and coccygeal regions are represented as 1 fused sacrum and 1 fused coccyx respectively.
III. The number of cervical vertebrae is highly variable, ranging from 5 to 11 in different mammalian species.
IV. The vertebral column serves as the point of attachment for the ribs and musculature of the back.

Analyze the following statements regarding the rib cage and ribs in humans:

I. The first seven pairs of ribs are called true ribs because they are connected dorsally to the thoracic vertebrae and ventrally to the sternum with hyaline cartilage.
II. The 8th, 9th, and 10th pairs of ribs articulate directly with the sternum via elastic cartilage.
III. The last two pairs (11th and 12th) of ribs are ventrally free and are called floating ribs.
IV. Ribs have two articulation surfaces on their dorsal ends, which is why they are called bicephalic.

Consider these statements about the human pectoral girdle and its elements:

I. Each half of the pectoral girdle is composed of a clavicle and a scapula.
II. Scapula is a large triangular flat bone situated in the dorsal part of the thorax between the third and eighth ribs.
III. The dorsal, flat, triangular body of the scapula has an elevated ridge called the spine, projecting as a flat process called the acromion.
IV. Below the acromion is a depression called the acetabulum which articulates with the head of the humerus.

Read the statements below regarding the pelvic girdle structure:

I. Pelvic girdle consists of two coxal bones, each formed by the fusion of three bones: ilium, ischium, and pubis.
II. At the point of fusion of the ilium, ischium, and pubis is a deep cavity called the glenoid cavity.
III. The two halves of the pelvic girdle meet ventrally to form the pubic symphysis, which contains fibrous cartilage.
IV. The thigh bone (femur) articulates with the acetabulum of the pelvic girdle.

Identify the correct statements concerning fibrous and cartilaginous joints in humans:

I. Fibrous joints do not permit any movement at all.
II. Sutures formed by flat skull bones fusing end-to-end with dense fibrous connective tissue to form the cranium are typical fibrous joints.
III. In cartilaginous joints, the articulating bones are joined together with the help of elastic cartilages.
IV. The joint between adjacent vertebrae in the vertebral column is a cartilaginous joint and permits limited movement.

Read these statements about synovial joints and their examples:

I. Synovial joints are characterized by a fluid-filled synovial cavity between articulating surfaces, allowing considerable movement.
II. The joint between the humerus and pectoral girdle is a hinge joint.
III. The pivot joint lies between the atlas and the axis vertebrae.
IV. Gliding joints exist between the carpals, while the saddle joint is found between the carpal and metacarpal of the thumb.