Anatomy Based Questions and Discussion

[tryharddd123]

hey guys ive been attempting some anatomy questions for my finals however im a bit stuck with a few questions, can anyone with anatomy knowledge provide any help please, anything is appreciated

thank you in advance

1. Gluteus medius is active just over half of the gait cycle. Which statement best explains its functions during walking forward at a comfortable self selected speed?
   1. Gluteus medius will be eccentrically contracting during the preswing to decelerate the ipsilateral pelvis drop rotating the functional lengthening of the limb
   2. Gluteus medius will be concentrically contracting after heel strike to project the body forward over the new stance limbs
   3. Gluteus medius will concentrically contract during initial swing to produce a rapid acceleration of the thigh forward so minimising the time spent in single support
   4. Gluteus medius isometrically contracting during terminal stance to hold the contralateral pelvis up when gravity will be trying to pull it down
2. Pronation of the hind foot
   1. Enhanced flexibility of the hind foot for more effective shock absorption during walking
   2. Redues internal rotations of the tibia when the foot is weight bearing and the knee is flexed
   3. Is demonstrated in an eccentric contraction of the fibrularis peroneus brevis Rotates the medial longitudinal arch of the foot during the anatomical position
3. Which of the following is correct about the activity of the leg muscles during the middle of the swing phase of the gait cycle when you are walking forward at a self selected speed
   1. The hind foot invertors that are alsoplanterflexors concentrically contract
   2. The toe extensors thare act as hind foot inverters isometrically contract
   3. Hid foot evertors that are also plantarflexors concentrically contract
   4. The toe flexors that are also hind foot inverters eccentrically contract
4. Sleus is active about 63% of the gait cycle. Which statement best explains its functions during walking forward at a comfortable, well selected speed.
   1. Soleus will be concentrically contracting during pre swing to prevent excessive lateral rotaion of the fibula induced by hnd foot supination
   2. Soleus will be eccentricallu contracting during initial stance to control foot induced by body momentum and gravity
   3. Soleus will be concentrically contracting during mid swing to ensure the foot clears the ground when the weightbearing limb is being rapidly advanced forward
   4. Soleus will be concnetrically contracting just before opposite heel strike to produce a slight acceleration of the body forward

1. Your client has foot drop which nerve could be damaged
   1. ____ lumbar spinal nerve in her back
   2. ____ nerve in gluteal region

thank you everyone so stressed

 

[quail]

Can't help so much with the first few questions - but from a clinical perspective foot drop occurs due to loss of power in the ankle dorsiflexors, which is predominantly from tibialis anterior/deep peroneal nerve. Therefore this would be the sciatic nerve in the gluteal region (and while you could argue it is the parts of the lumbar plexus which make up the sciatic nerve for the first part) I think the question is asking for the nerve foots/myotome which control this action, which would L4/5

 

[Crow]

Are the first four questions from a medical course? Seems like some serious overkill.