PSK: 2 Truths and a Lie

Can you spot the lie?

• The radius is clearly shown in the image above

• The Humerus is clearly shown in the image above

• The Ulna is clearly shown in the image above

Answer explanation

The humerus is located in the upper arm, while the radius and ulna are located in the forearm.

Can you spot the lie?

• The femur is a short bone that is positioned in the thigh.

• The femur is a bone in the lower limbs.

• The femur is among the body's strongest bones.

Answer explanation

The femur is located in the thigh, but it's a long bone.

Can you spot the Truth?

• The phalanges and tarsals are located in both your hand and foot

• Both your upper and lower limbs contain phalanges, which are long bones.

• The metacarpal bones are elongated shaped, and they form the hand

Answer explanation

Both of these options are correct. The tarsals are found only in the foot, as stated in the wrong question.

Can you spot the lie?

• Inside the human skull, the mandible is the biggest bone.

• The cranial bones comprise the Parietal, Temporal, and Occipital lobes.

• The frontal lobe is responsible for brain protection and in controlling of hearing.

Answer explanation

The temporal bone is responsible in controlling hearing.

Can you spot the lie?

• The scapula is commonly known as the "collar bone"

• The sternum protects the heart, lungs, and chest

• The clavicle is the bone that joins the scapula to the sternum.

Answer explanation

The "clavicle" is commonly known as the collar bone.

Can you spot the truth?

• The image above contains the "External Oblique"

• The image above contains the "Gluteus maximus"

• The image above contains the "Pectoralis major"

Answer explanation

Both the options are correct. As for the incorrect statement, the Gluteus maximus is found posterior of the hip joint.

Can you spot the lie?

• Myosin binding site is covered by the tropomyosin

• Myosin makes up thin filaments, while actin makes up thick filaments.

• Muscle contraction requires Calcium in the sarcomere

Answer explanation

Myosin makes up thick, while actin makes thin filaments.

Can you spot the lie?

• Triceps are believed to be antagonists.

• Biceps are believed to be agonists

• The antagonist is the primer mover, while the agonist produces the opposite action

Answer explanation

The agonists are primer movers and antagonists produce the opposite action.

Can you spot the Truth?

• Gluteus maximus action: extends and rotates the thigh laterally at hip joint

• Brachialis action: flexes arm at shoulder joint

• Triceps brachii action: extends arm at shoulder joint

Answer explanation

Both the options are correct. As for the incorrect question, the Brachialis flexes the forearm at elbow joint.

Can you spot the lie?

• Deltoid origin: Clavicle and Sternum

• Latissimus Dorsi insertion: sacrum and ilium

• Pectoralis Major insertion: Humerus

Answer explanation

The Deltoid origins are the clavicle and scapula