Lakshya Education MCQs

Question: Which of the following is not matched correctly?

 



  1. Pectoral girdle - Acetabulum


  2. Pelvic girdle - Ilium, ischium, pubis


  3. Acromion - is the portion of the scapula that articulates with the clavicle


  4. Glenoid cavity - depression of scapula into which the head of the humerus fits

Options:
A.Pectoral girdle - Acetabulum
B.Pelvic girdle - Ilium, ischium, pubis
C.Acromion - is the portion of the scapula that articulates with the clavicle
D.Glenoid cavity - depression of scapula into which the head of the humerus fits
Answer: Option A
: A

The shoulder girdle or pectoral girdle is the set of bones which connects the upper limb to the axial skeleton on each side. In humans, it consists of the clavicle and scapula.The acetabulumis a concave surface of the pelvis. The head of thefemurmeets with the pelvis at the acetabulum, forming the hip joint.
The pelvic girdle is formed by the fusion of ilium, ischium, and pubis.


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More Questions on This Topic :

Question 1. In a skeletal muscle, T – tubules
  1.    Secrete acetylcholine
  2.    Gives mechanical support
  3.    Conducts impulses forward
  4.    Bring about calcium flow for muscle contraction
Answer: Option C
: C

T –tubules are a part of sarcoplasmic reticulum of muscle cells. Calcium is stored in the sarcoplasmic reticulum.Thefunction of T-TUBULESis to conduct impulses from the surface of the cell (sarcolemma) down into the cell. Acetylcholoine is present in the axon terminals of tne neurons.
Question 2. Identify the correct sequence of ear ossicles of mammals from tympanic membrane
  1.    Malleus, incus, stapes
  2.    Malleus, stapes, incus
  3.    Incus, malleus, stapes
  4.    Stapes, incus, malleus
Answer: Option A
: A

The three tiniest bones in the body form the coupling between the vibration of the eardrum and the forces exerted on the oval window of the inner ear. Formally named the malleus, incus, and stapes, they are commonly referred to in English as the hammer, anvil, and stirrup.
Question 3. Which of the following is a most common misconception with regard to the disease arthritis?
  1.    Arthritis is much more than just minor aches and pains
  2.    Can last for years or be lifelong
  3.    Different types of arthritis exist
  4.    Arthritis is an old person's disease.
Answer: Option D
: D

The most common misconception about arthritis is that it's a disease only of old people. In actuality, arthritis can affect anyone at any age, not just the elderly including children, Young adults and middle aged.
Question 4. Label the parts of typical vertebra in order from 1-5 according to the figure below.

  1.    1. Spinous process, 2. Vertebral arch, 3. Foramen, 4.Lamina, 5.Transverse process
  2.    1.Transverse process, 2. Vertebral arch, 3. Foramen, 4. Lamina, 5. Spinous process
  3.    1.Spinous process, 2. Vertebral arch, 3. Lamina, 4.Foramen, 5.Transverse process
  4.    1.Spinous process, 2.Foramen, 3.Lamina, 4.Vertebral arch, 5.Transverse process
Answer: Option A
: A

Body – The body is the weight-bearing part of the vertebrae. Vertebral arch -The arch is on the posterior aspect of the body and protects the spinal cord Vertebral foramen -The opening through the arch is called the vertebral foramen Processes-There are three different types of processes which serve as attachment points for ligaments and muscles and sites for moveable joints
Question 5. All the following are properties of skeletal muscles except
  1.    Excitability
  2.    Extensibility
  3.    Contractility
  4.    Rhythmicity
Answer: Option D
: D

Rhythmicity is a property of cardiac musclesin cardiology, the ability to beat, or the state of beating, rhythmically without external stimuli.
Excitability: this refers to muscle tissue being able to react to nervous stimulation.
Extensibility: this refers to the ability of muscle tissue to lengthen when contracting and provide the effort required to move the lever system (the bones and joints), producing coordinated movement.
Contractility -: this refers to the capacity of a muscle to contract or shorten forcibly when stimulated by nerves and hormones (excitability).
Question 6. Ribs attached to sternum are
  1.    First seven pairs
  2.    First ten pairs
  3.    First five pairs
  4.    All twelve pairs
Answer: Option A
: A

First 7 pairs of ribs are attached anteriorly to the sternum, next 3 attached to a cartilage called costochondral cartilage and the last 2 pairs do not have any anterior attachment and hence called floating ribs.

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