KIN 360--Exam 3: Practice Questions

what type of joint is the humeroulnar joint?

what type of joint is the humeroulnar joint?

ginglymus

what type of joint is the humeroradial joint?

enarthrodial

what limits the rotation of the radius in the humeroradial joint?

annular ligament

what type of joint is the elbow?

ginglymus

when standing in AP, what is the angle of the forearm relative to the humerus called?

carrying angle

what is an exaggerated carrying angle called?

cubitis valgus

who has a naturally larger carrying angle: men or women?

women

why do women have a larger carrying angle?

narrower shoulders and a broader pelvis

what movements cause the carrying angle to disappear?

flexion and pronation

True or False: Elbow flexion is greater in pronation rather than supination.

False. It is larger in supination.

True or False: The proximal radioulnar joint is a trochoid type joint.

True

Multiple Choice: The distal radioulnar joint is which type?

-enarthrodial

-ginglymus

-trochoid

-condyloid

trochoid

what three carpal bones make up the radiocarpal joint?

navicular, lunate, and triquetral

True or False: The MCP of the four fingers and the MCP of the thumb are the same type of joint.

False

what type of joint is the MCP of the four fingers?

condyloid

what type of joint is the MCP of the thumb?

ginglymus

True or False: You cannot abduct your fingers when they are already fully flexed.

true

what type of joint are the interphalangeal joints of the fingers and thumb?

ginglymus

Multiple Choice: What type of joint is the carpometacarpal joint of the thumb?

-condyloid

-trochoid

-ginglymus

-saddle

saddle

True or False: opposition of the thumb is the combination of adduction and flexion.

False. Abduction and hyperflexion.

at what joint of the thumb does opposition occur?

carpometacarpal

what bones make up the carpometacarpal joint of the thumb?

trapezium and the first metacarpal

what is the articulation between the four carpal bones in the proximal row with the four in the distal row? (blue line)

midcarpal joint

what are the articulations between the adjacent carpal bones within either row (proximal or distal)? (green lines)

intercarpal joint

what are the articulations between the bases of the metacarpal bones of the four fingers? (purple lines)

intermetacarpal joints

what muscles prevents complete flexion of the wrist and fingers simultaneously? (hint: the one that causes pain when you do this)

extensor digitorum

True or False: maximal wrist action requires either flexed or extended fingers.

False. It requires relaxed fingers.

True or False: maximal finger action requires a relaxed wrist.

False. It requires a rigid wrist.

what 3 bones make up the acetabulum?

ilium, ischium, and pubis

what is the gap found in the lower aspect of the acetabulum called?

acetabular notch

True or False: The entire acetabulum is lined with hyaline cartilage.

True

True or False: This hyaline cartilage that lines the acetabulum is thicker inferiorly rather than superiorly.

False. It is thicker superiorly than it is inferiorly.

what makes up the glenoid labrum and covers the hyaline cartilage?

fibrocartilage

the head of the femur is completely covered in hyaline cartilage except where?

fovea capitis

what 3 factors contribute to the stability of the hip joint?

the spherical head of the femur, the deep socket, and the low atmospheric pressure within the socket

there are two hip bones that make up the pelvic girdle. these hip bones are the combination of what three bones?

ilium, ischium, and pubis

when do the components of the hip bones (the ilium, ischium, and pubis) become fully fused together?

puberty

what bone is the pelvic girdle attached to and what is the articulation between them called?

sacrum; sacroiliac articulation

what type of joint is the sacroiliac articulation?

diarthrodial

True or False: Voluntary movement is possible at the sacroiliac articulations

False

movement of the pelvis in the sagittal plane about a lateral axis so that the pubis symphysis turns downward and the posterior surface of the sacrum turns upward

forward tilt

what movement of the hip and of the spine create forward tilt of the pelvis?

hip flexion and spinal extension

a rotation of the pelvis in the sagittal plane about a lateral axis so that the pubis symphysis moves forward-upward and the posterior surface of the sacrum turns downward

backward tilt

True or False: The movements of the hip and spine that are required to create backward tilt of the pelvis are hip extension and spine flexion.

true

a rotation of the pelvis in the frontal plane about an antero-posterior axis so that one iliac crest is lowered and the other raised

lateral tilt

a rotation of the pelvis in the transverse (horizontal) plane about a vertical axis; the movement is named in terms of the direction toward which the front of the pelvis turns

rotation/lateral twist

true or false: turning your hips to the right would create a right rotation or right lateral twist of the pelvis.

true

True or False: The iliacus and psoas muscles only contribute to part of the motion of doing a sit-up from a supine position, aka flexion.

false