Question

1) Describe how to reach out and scratch your nose Use the following Vocabulary words- Antagonistic muscles Central pattern generators Corticospinal tracts Golgi tendon organs Lateral corticospinal tract Medial corticospinal tract Mirror neurons Motor program Muscle spindle Nuclei of the cerebellum Posterior parietal cortex Premotor cortex Primary motor cortex Proprioceptor Substantia nigra Supplementary motor cortex Vestibular nucleus

I think he needs to answer this quetion by using these words

Answer 1

Antangonistic muscles:

Agonist muscles and antagonist muscles refer to muscles that cause or inhibit a movement. Antagonist muscles are simply the muscles that produce an oppsing joint torque to the agonist muscles.

Central pattern generators:

central pattern generators are neuronal circuits that when activated can produce rhythmic motor patterns such as breathing .

Corticospinal tract:

The corticospinal tract is a white motor pathway starting at the cerebral cortex that terminated on lower mortor neurons .

Golgi tendon organs:

The Gto is a proprioceptive sensory receptor organ that senses changes in muscle tension.

Lateral corticospinal tract:

It is a descending motor pathway that begins in the cerebral cortex decussates in the pyramids of the lower medùlla.

Medial corticospinal tract:

It is a small bundle of descending fibers that connect the cerebral cortex to the spinal cord.

Mirror neuron:

Mirrior neurons have been directly observed in primate species.

motor program:

It is an abstract representation of movement that centrally organises and controls the many degrees of freedom involved in performing an action.

Muscle spindle:

Muscles spindles are stretch receptors within the body of a muscle that primarily detect changes in the length of the muscle.

Nuclei of the cerebrum:

It receives both the mossy fiber and purkinje cell inputs.

Posterior parietial cortex:

It plays an important role in planned movements , spatial reasoning and attention.

primary mortor cortex:

This is a brain region that in humans is located in the dorsal portion of the frontal lobe.

Propriceptor:

It is the sense of self movement and body position.

(sixth-sense)

Substantia nigra:

It plays an important role in reward and movement.

Supplymentary motor cortex:

It is a part of the primate cerbral cortex that contributes to the control of movement.

Vestibular nuclei:

VN are the cranial nuclei for the vestibular nerve.