Misc

Ulnar nerve innervates which muscles?

22 Apr, 2023 by Dane Raynor

Mentioning ‘ulnar nerves’ could send shivers down one’s spine. However, it is essential to understand where they originate and what roles they play in our bodily movements (excluding shock sensations, of course). This article focuses on which muscles are innervated by the ulnar nerve.

First things first: What is the Ulnar Nerve?

The ulnar nerve originates from the medial cord of brachial plexus (bet that one caught you off guard!) It runs through a tunnel known as Guyon’s canal located behind the wrist then splits into two branches; deep and superficial.

Fun Fact: did you know that Electric Shock-like Sensations at your 4th finger and palm indicate an irritative issue with your Ulnar nerve? Now imagine writing upon getting such shocks! No more calligraphy for you!

Which Muscles Does it Innervate?

1. Flexor Carpi Ulnaris

This muscle is situated near your inner forearm region just above Wrist Flexors (meaning moving downwards). Therefore this complex movement involves both Pronator Teres/Square & Palmaris Longus amongst others working together making sure any screws being put-in or knob twisted have satisfactory results [couldn’t bear another wobbly elbow joint].

2.Ulnar Head flexor digitorum profundus

A product easily conjured up by Word Wizard Google Docs Correction suggestions, correct grammar isn’t so impressive for delicate dissection dissecting much less articulated motion.

3.Adductor Pollicis

Although its name suggests something like acrobatics daredevilry performance artistry (?), Adductor Pollicis refers to thumb adduction- not some fancy maneuver act carried out by circus clowns!

4. Ulnar Side of Flexor Digitorum Profundus

This long-named association with intricate movements is located at the inner forearm area just past halfway up towards your elbow joint.

Fun Fact: The etymology behind digitorium is from Latin where digitus translates to finger; thus, flexor digitorium profundus means Deep Finger Bender– bringing out some Cheef Bond villain vibzzz here!

5. Palmar Interossei

Don’t be freaked by its odd name palmar interosseous muscles sits between metacarpal bones on ulnar fossa (meaning “palm”); it isn’t sentient and plays zero part in some kind of Palm Reading nonsense! Its primary function is closing fingers when gripping a ball or essential objects like one’s favorite pasta bowl (mmm… Spaghetti)

6. Dorsal Interossei

Contrasting to PIM, DI muscle complex spreads across hand dorsal areas to similarly affect finger motion actions.

### 7. Third Palmar Interosseous Muscle
The three-headed protuberance situated near your inner palm region that helps move individual fingers assistively rather than a coordinated grouping effect involved for TPI involvement.

### 8.Abductor Pollicis Brevis
Please don’ assume this relates to craft beer enthusiasts letting off steam after beating deadlines!! APB >> Abductor Pollicis Brevis lies in the thenar Eminence & serves thumb abduction flexion-extension mechanism — no tricky wordplay pop-culture puns intended ~ promise!

In conclusion, it’s important not only to appreciate each nerve stem/branch originating within our brachial plexuses but understand their exact nuances as they cascade down into periphery playing unique roles in movement circuitry–excluding physical shocks due course!

Related Topics:

  1. Which nerve innervates the quadriceps?
  2. What nerve innervates the lower lip?
  3. What kind of doctor for ulnar nerve entrapment?
  4. What type of doctor treats ulnar nerve entrapment?
  5. What happens if ulnar nerve is damaged?

Random Posts