What muscles are innervated by the pudendal nerve?
The pudendal nerve provides motor innervation to the anal sphincters and the urethral sphincter; it also provides cutaneous sensory innervation to the perineum, the penis, the scrotum, the labia majora, and the clitoris.
What are the symptoms of pudendal nerve damage?
What are the symptoms of pudendal nerve neuralgia?
- Pain in the genitals or perineum (sharp, stabbing, prickling or shooting sensations)
- Burning pain in pelvic area and lower back.
- Pain in the buttocks, legs and feet.
- Numbness or pins and needles.
- Increased sensitivity.
- Dyspareunia (painful sex)
What muscle does Trochlear nerve innervate?
the superior oblique muscle
The only muscle the trochlear nerve innervates, the superior oblique muscle, is the longest and thinnest muscle among the extraocular muscles.
Which muscles does the oculomotor nerve innervate?
The oculomotor nerve controls several muscles:
- Levator palpebrae superioris – raises the upper eyelid.
- Superior rectus muscle – rotates the eyeball backward, “looking up”
- Medial rectus muscle – adducts the eye, “looking towards your nose”
- Inferior rectus muscle – rotates the eyeball forwards, “looking down”
Is trochlear a nerve?
The trochlear nerve (/ˈtrɒklɪər/), also called the fourth cranial nerve or CN IV, is a motor nerve (a somatic efferent nerve) that innervates just one muscle: the superior oblique muscle of the eye, which operates through the pulley-like trochlea.
Why does trochlear nerve Decussate?
The trochlear nerve supplies one muscle: the superior oblique. The trochlear nucleus gives rise to nerves that cross (decussate) to the other side of the brainstem just prior to exiting the brainstem. Thus, each superior oblique muscle is supplied by nerve fibers from the trochlear nucleus of the opposite side.
What is the smallest nerve in the human body?
Trochlear nerve
Trochlear nerve is the smallest cranial nerve. Out of the 12 pairs of cranial nerves, the fourth paired cranial nerve, the trochlear nerve is the smallest of all by virtue of the number of axons.
What nerve allows you to chew?
The trigeminal nerve is responsible for sensory enervation of the face and motor enervation to muscles of mastication (chewing).
How long does the pudendal nerve take to heal?
The nerve grows back unharmed after 6-12 months, but oftentimes the pain does not return with it.