What does pectoralis mean in Latin?
pectoral (adj.) 1570s, “of or pertaining to the breast or chest,” from Latin pectoralis “of the breast,” from pectus (genitive pectoris) “breast, chest,” a word of unknown origin.
What does pectoral mean in English?
1 : of, situated in or on, or worn on the chest. 2 : coming from the breast or heart as the seat of emotion.
What is the meaning of pectoral muscles?
Pectoralis muscle, any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder. There are two such muscles on each side of the sternum (breastbone) in the human body: pectoralis major and pectoralis minor.
How did the pectoralis major get its name?
The name pectoralis major describes the general location of this muscle. Pectoralis comes from the Latin word “pectus” meaning breast and major comes from Latin and means “greater than”.
What is a synonym for pectoral?
musculus pectoralis, pecs, pectoral medallion, pectoral muscle, pectoralis. pectoral, thoracicadjective. of or relating to the chest or thorax.
What does serratus mean?
Serratus: One of several muscles of the back and thorax. that have interdigitating slips that ressemble the notches on the cutting edge of a saw. (Serrated refers to a finely notched edge.)
Where is the pectoral region?
upper chest
The pectoral region is the anterior region of the upper chest where there are four thoracoappendicular muscles (also known as the pectoral muscles): pectoralis major. pectoralis minor. subclavius.
Do females have pectoral muscles?
Underneath the breasts there is fibrous tissue and muscle. The pectoral muscle passes underneath the breast and connects the chest and the arm. Lying further below the pectoral muscle are the ribs which are connected by intercostal muscles, which raise and lower the rib cage when breathing in and out.
What are the 4 pectoral muscles?
The pectoral region is the anterior region of the upper chest where there are four thoracoappendicular muscles (also known as the pectoral muscles):…
- pectoralis major.
- pectoralis minor.
- subclavius.
- serratus anterior.
What is the opposite of pectorals?
Another example is the pectoral muscle and its opposition, the latissimus dorsi, or lat.
What is the innervation of pectoralis major?
The pectoralis major receives dual motor innervation by the medial pectoral nerve and the lateral pectoral nerve, also known as the lateral anterior thoracic nerve. The sternal head receives innervation from the C7, C8 and T1 nerve roots, via the lower trunk of the brachial plexus and the medial pectoral nerve.
Where are the trap muscles?
The trapezius is a muscle that starts at the base of your neck, goes across your shoulders and extends to the middle of your back. The trapezius (traps muscle) helps you move your head, neck, arms, shoulders and torso. It also stabilizes your spine and helps with posture.