Biomechanics Test - T3 Flashcards
A muscle in which the fascicles are aligned at a common angle to the tendon is described as a…
…pennate muscle.
During extension of the thigh around the hip joint, which muscles act as an agonist and antagonist pair?
Agonist = Gluteus maximus. Antagonist = Rectus femoris.
Flexion of the forearm at the elbow joint is accomplished by which three muscles?
- Biceps brachii
- Brachialis
- Brachioradilis
Four main extensors at the hip?
- Semimembranosus
- Semitendinosus
- Biceps femoris
- Gluteus maximus
Three types of muscle tissue?
- Skeletal
- Cardiac
- Smooth
In which type of contraction does tension rise with no change in muscle length?
Isometric.
4 muscles that flex at the knee joint?
- Gastrocnemius
- Semitendinosus
- Semimembranosus
- Biceps femoris
Where are the hip adductor muscles situated?
Medial aspect of the thigh.
The insertions of which muscles form the calcanean tendon?
Gastrocnemius and soleus.
What does deltoid mean?
Triangular.
What does carpi mean?
Wrist.
What does hallucis mean?
Great toe.
What does adductor mean?
Moving a bone nearer to the midline.
How does the pectorals major act at the shoulder joint?
Flexes, adducts and medially rotates the arm.
What leg movement would be impaired by injury to the tibialis anterior muscle?
Dorsiflexion of the foot.
How to describe origin and insertion?
The insertion moves which the origin remains relatively stationary.
The quadriceps femoris is _____ to the hamstrings.
antagonistic
Popliteus muscle?
Extends over the posterior aspect of the knee joint.
What is a multipennate fascicle arrangement like? Example?
Multiple feathers converging on a central point e.g. deltoid.
If an agonist muscle produces elevation, what will the action of the antagonist be?
Depression.
In order to stretch the gastrocnemius, the…
…ankle joint should be dorsiflexed and the knee joint extended.
The countermovement associated with jumping is designed to take advantage of what?
The utilisation of stored elastic energy.
What leg movement would be impaired by injury to the tibialis anterior muscle?
Dorsiflexion of the foot.
Agonist?
Contracting muscle.
