#1
Which of the following bones is part of the axial skeleton?
Vertebra
ExplanationForms the central axis of the skeleton including the skull, vertebral column, and rib cage.
#2
Which muscle is responsible for extension of the forearm?
Triceps brachii
ExplanationLocated at the back of the upper arm, it extends the forearm when contracted.
#3
Which of the following bones is NOT part of the human hand?
Metatarsal
ExplanationMetatarsals are bones in the feet, not the hands.
#4
Which muscle is responsible for flexion of the thigh?
Sartorius
ExplanationThe longest muscle in the body, it crosses the hip joint and aids in thigh flexion.
#5
Which of the following bones is NOT part of the human vertebral column?
Scapula
ExplanationThe scapula is part of the shoulder girdle and not part of the vertebral column.
#6
Which of the following is NOT a function of the skeletal system?
Generation of body heat
ExplanationWhile bones support and protect the body, they do not directly generate body heat.
#7
Which joint allows for the greatest range of motion?
Ball and socket joint
ExplanationCharacterized by a rounded surface in a socket, allowing movement in multiple directions.
#8
Which type of joint is found between the carpals of the wrist?
Ellipsoidal joint
ExplanationCharacterized by an oval-shaped end fitting into an elliptical cavity, allowing for movement in multiple directions.
#9
Which structure provides cushioning and reduces friction in joints?
Bursa
ExplanationSmall fluid-filled sacs that reduce friction between bones, tendons, and muscles.
#10
Which type of joint allows for movement in all planes and axes?
Ball and socket joint
ExplanationCharacterized by its spherical head fitting into a cup-like socket, allowing for movement in various directions.
#11
Which of the following is true about tendons?
They attach muscle to bone
ExplanationTendons are fibrous connective tissues that connect muscles to bones.
#12
Which of the following muscles is involved in dorsiflexion of the foot?
Tibialis anterior
ExplanationLocated at the front of the leg, it helps lift the foot during dorsiflexion.
#13
Which muscle is responsible for plantar flexion of the foot?
Gastrocnemius
ExplanationThe prominent calf muscle, it aids in pointing the foot downward.
#14
Which muscle is involved in both flexion and extension of the thigh?
Rectus femoris
ExplanationA muscle of the quadriceps group, it aids in both thigh flexion and extension.
#15
Which muscle is responsible for lateral rotation of the hip?
Quadratus femoris
ExplanationOne of the deep muscles of the hip, it aids in outward rotation of the thigh.