What is the pollex bone?
What is the pollex bone?
Thumb, also called pollex, short, thick first digit of the human hand and of the lower-primate hand and foot. It differs from other digits in having only two phalanges (tubular bones of the fingers and toes).
How are the hand bones numbered?
The human hand has 27 bones: the carpals or wrist accounts for 8; the metacarpals or palm contains five; the remaining fourteen are digital bones; fingers and thumb. The palm has five bones known as metacarpal bones, one to each of the 5 digits.
What part of the body is the pollex?
When a person is standing in the medical anatomical position (where the palm is facing to the front), the thumb is the outermost finger. The Medical Latin English noun for thumb is pollex (compare hallux for big toe), and the corresponding adjective for thumb is pollical.
What bones form hands?
There are 3 major types of bones in the hand itself, including:
- Phalanges. The 14 bones that are found in the fingers of each hand and also in the toes of each foot.
- Metacarpal bones. The 5 bones that compose the middle part of the hand.
- Carpal bones. The 8 bones that create the wrist.
Why is the thumb called Pollex?
Having a skeleton of phalanges, joined by hinge-like joints that provide flexion toward the palm of the hand: The pollices have two phalanges (bones) instead of three, like the other digits or fingers. Etymology: Latin pollic-, pollex or digitus primus, “thumb, big toe”.
Is the thumb technically a finger?
A thumb is a digit, but not technically a finger. Many people don’t make the distinction between thumbs and other digits.
What are the 14 phalanges bones?
The phalanges are the bones that make up the fingers of the hand and the toes of the foot. There are 56 phalanges in the human body, with fourteen on each hand and foot. Three phalanges are present on each finger and toe, with the exception of the thumb and large toe, which possess only two.
Do you have 10 or 8 fingers?
We have 10 fingers, two or which also happen to be special fingers, called thumbs. I’m speaking from a usage stand point. Even though a dictionary may give specific meanings, in practice, in the US, people actually use the terms fingers and thumbs as per above.
What does the medical term Pollex mean?
thumb
Medical Definition of pollex : the first digit of the forelimb : thumb.
Is thumb considered a finger?
How do you label phalanges?
Since the phalanges are arranged in rows, the name of each phalanx is based on its row and position number. The first phalanges are located in the big toe.
What is Pollex and hallux?
The thumb is officially the pollex and the big toe is the hallux.