What is Branchiomotor?

Branchiomotor definition Filters. (zoology) Of or pertaining to the movement of the gills or the muscles of the branchial arches.

Which cranial nerves are Branchiomotor?

Some sources prefer the term “branchiomotor” or “branchial efferent”. The only nerves containing SVE fibers are cranial nerves: the trigeminal nerve (V), the facial nerve (VII), the glossopharyngeal nerve (IX), the vagus nerve (X) and the accessory nerve (XI).

What are Branchiomotor fibers?

The branchiomotor neurons (also called special visceral motor neurons) are located in the hindbrain, and innervate branchial (pharyngeal) arch-derived muscles that control jaw movements, facial expression, the larynx, and the pharynx.

What is Pneumogastric nerve?

The vagus nerve also called the pneumogastric nerve, is responsible for various internal organ functions, including: digestion. heart rate. breathing.

What type of nerve is oculomotor?

The oculomotor nerve is the third cranial nerve (CN III). It allows movement of the eye muscles, constriction of the pupil, focusing the eyes and the position of the upper eyelid. Cranial nerve III works with other cranial nerves to control eye movements and support sensory functioning.

What is the difference between branchial motor and somatic motor?

Of note, the difference between somatic and branchial motor is that branchial motor fibers are just fibers that innervate structures derived from the pharyngeal arches, which are also sometimes called the branchial arches.

Which cranial nerves contain autonomic Efferents?

The superior salivatory nucleus sends efferent autonomic fibers (general visceral efferent) through cranial nerve VII to innervate the lacrimal, submandibular, and sublingual glands as well as the mucous membranes of the nose and hard and soft palate.

What nerves are GSE?

The general (spinal) somatic efferent neurons (GSE, somatomotor, or somatic motor fibers), arise from motor neuron cell bodies in the ventral horns of the gray matter within the spinal cord. They exit the spinal cord through the ventral roots, carrying motor impulses to skeletal muscle through a neuromuscular junction.

What does the vagus nerve do?

Overview over the basic anatomy and functions of the vagus nerve. The vagus nerve is responsible for the regulation of internal organ functions, such as digestion, heart rate, and respiratory rate, as well as vasomotor activity, and certain reflex actions, such as coughing, sneezing, swallowing, and vomiting (17).

Is vagus sympathetic or parasympathetic?

parasympathetic nervous system
The vagus nerve represents the main component of the parasympathetic nervous system, which oversees a vast array of crucial bodily functions, including control of mood, immune response, digestion, and heart rate.

What is the function of tractus solitarius?

Nucleus tractus solitarius is involved in generating and synchronizing the peristaltic activity of the upper gastrointestinal tract during swallowing. The rhythmic release of inhibitory (GABA) and excitatory (glutamate) neurotransmitters is responsible for the sequential motor pattern seen in peristalsis.

Is oculomotor sensory or motor?

Somatic Motor

Nerves in Order	Modality	Function
Olfactory	Special Sensory	Smell
Optic	Special Sensory	Vision
Oculomotor	Somatic Motor Visceral Motor	Levator palpebrae, superioris, superior, medial & inferior recti muscles Parasympathetic to ciliary & pupillary constrictor muscles
Trochlear	Somatic Motor	Superior oblique muscle

What happens when the oculomotor nerve is damaged?

Damage to any of these nerves or the muscle or muscles they innervate causes dysconjugate gaze, which results in characteristic patterns of diplopia (double vision). In addition, with oculomotor nerve damage, patients also lose their pupillary constriction to light as well as the elevation of their eyelid.

Is vagus sensory or motor?

The vagus nerve (cranial nerve [CN] X) is the longest cranial nerve in the body, containing both motor and sensory functions in both the afferent and efferent regards.

Is facial nerve somatic?

There are four major functions of the facial nerve: General somatic efferent (motor supply to facial muscles) General visceral efferent (parasympathetic secretomotor supply to submandibular and sublingual salivary glands and the lacrimal gland)

What are general visceral Efferents?

The term general visceral efferents (GVE) refers to the visceral efferent fibers of brainstem neurons that project through cranial nerves (the oculomotor nerve, the facial nerve, the glossopharyngeal nerve or the vagus nerve) or preganglionic neurons of the spinal cord that project to postganglionic visceral efferent …