2018 Flashcards
in which of the following joints do you NOT find a fibrocartilage structure that increases the contact area?
a) metacarpophalangeal joint
b) talocrural joint
c) glenohumeral joint
d) hip joint
e) tibiofemoral joint
B
with regard to bone fractures, which statement is false?
a) most clavicular fractures occur in the middle third of the shaft
b) the scaphoid is the most commonly fractured carpal bone
c) the navicular is the most common tarsal to stress fracture
d) most tibial stress fractures occur in the anterior cortex of the shaft
e) the most common bone to stress fracture is the tibia
D (should be posteromedial)
Which of the following statements about hip muscles is CORRECT?
A) In a position of 90 degrees hip flexion, the posterior fibres of gluteus medius laterally rotate the hip
B) Adductor magnus is a hip flexor in anatomical position
C) Adductor longus is a hip flexor in anatomical position
D) Coxa valga increases the moment arm of gluteus medius
E) Adductor brevis contributes to hip extension from anatomical position
C
Regarding the patellofemoral joint,
A) the patella glides superiorly on the femur during knee flexion
B) the patella medially tilts around the vertical axis during knee flexion
C) with increasing knee flexion, the contact area between the patella and femur increases
D) the odd facet articulates with the lateral femoral condyle near full knee extension
E) with increasing knee flexion, the contact area moves from the base toward the apex of the patella
C ?
Regarding muscles of the knee region, which statement is FALSE?
A) Contraction of biceps femoris long and short head can laterally rotate the tibia
B) The ‘Q angle’ estimates the lateral pull of the quadriceps group
C) Popliteus medially rotates the femur on the fixed tibia to ‘lock’ the knee in extension
D) Sartorius medially rotates the tibia on the femur
E) Semitendinosus contraction can produce medial rotation of the tibia on the femur
C
Foot pronation
A) increases the height of the navicular
B) is linked to tibial internal rotation at the subtalar joint
C) is triplanar motion combining plantarflexion, eversion and aBduction
D) occurs immediately prior to push-off, so that the foot is rigid to transfer force
E) is produced by tibialis posterior contraction
B
Which structure does NOT support the medial longitudinal arch of the foot? A) long plantar ligament B) plantar fascia C) tibialis posterior D) abductor hallucis brevis E) tibialis anterior
A (supports lateral arch)
Lateral flexion segmental mobility is greatest in the A) mid thoracic region B) mid cervical region C) upper thoracic region D) upper cervical region E) lumbosacral articulation
B
The following are features of the thoracic vertebral column that restrict movement EXCEPT
A) long downward pointing spinous processes
B) the presence of the ribs
C) the small intervertebral disc height to vertebral body ratio
D) the height of the superior articular processes
E) the sagittal orientation of the zygapophyseal joints
E
Movement- presence of rib cage reduces overall movement; other features- intervertebral disc doesn’t facilitate movement bc it isn’t very high so superior vertebrae cannot tilt as much; superior articular processes limits F-E and spinous processes limits E
Which of the following structures does NOT attach to the second cervical vertebra (axis)? A) rectus capitis posterior major B) obliquus capitis inferior C) transverse ligament D) semispinalis cervicis E) alar ligament
C
The vertebral artery
A) enters the cranium via the jugular foramen
B) turns abruptly posteriorly and medially as it emerges superiorly from the first cervical vertebra
C) provides the main blood supply to the frontal lobe
D) arises from the axillary artery
E) travels through the transverse foramen of the seventh to first cervical vertebrae
B
Which of the following statements concerning multifidus is INCORRECT?
A) Multifidus is a polysegmental back muscle
B) Multifidus is innervated by branches of the lumbar plexus
C) Multifidus is primarily a back extensor
D) Multifidus is normally active during active trunk rotation
E) The fascicles of multifidus converge superiorly to attach to a common spinous process and lamina
B (innervated by medial branch nerve of the posterior ramus)
The medial branch of the dorsal rami innervates all of the following EXCEPT A) the zygapophyseal joint below B) interspinous muscle C) multifidus D) the zygapophyseal joint above E) the posterior outer annulus
E
The main extensor of the lumbar spine is A) longissimus thoracis pars lumborum B) quadratus lumborum C) multifidus D) longissimus thoracis pars thoracis E) iliocostalis lumborum pars lumborum
D
Which of the following statements CORRECTLY describes the activity of the diaphragm in postural control of the trunk?
A) Activity in the diaphragm is not associated with trunk control
B) The diaphragm will maintain a strong contraction to provide trunk stability even when respiratory drive increases
C) Contraction of the diaphragm increases intra-thoracic pressure and stiffens the vertebral column
D) Activity in the diaphragm, without co-contraction of the abdominal muscles, can provide postural stability for the trunk
E) The diaphragm maintains a level of baseline contraction when performing fast, repetitive upper limb movements in standing
possibly C but not 100% sure
