Criteria used to name the muscle, transverse abdomis was
1. Direction of the muscle fibers
2. Relative size of the muscle to the muscles around it
3. Location of the muscle
4. Number of origins
5. Location of the muscle's origin and insertion
6. Shape of the muscle
7. Action of the muscle
Pectoralis major, deltoid, triceps brachii, coracobrachialis, serratus anterior, external and internal obliques, rectus abdominis and the transverse abdominis are all used in push ups. The pectoralis major and the triceps are the prime movers.
My butt-hole smells good with KY Jelly
A plank primarily engages the back, shoulder, and abdominal muscles. Most notably, these include the erector spinae, rectus abdominis, transverse abdominus, trapezius, pectorals, and deltoids.
The main abdominal muscle groups are the rectus abdominis, obliques, and transverse abdominis. To effectively target these muscles, exercises like crunches, planks, Russian twists, and leg raises can be used. It's important to perform a variety of exercises that engage all these muscle groups to strengthen and tone the entire abdominal area.
Rectus abdominis.
Rectus Abdominis
Rectal Abdominis
The abdominal muscles called rectus abdominis are the ones that work hard to enable you to flex your abdomen when doing sit-ups. Other muscles used while doing sit-ups are the external oblique's, tensor fasciae latae and rectus femora's.
I would say that the rectus abdominis would be the main muscle associated with trunk flexion, but the external and internal obliques also perform trunk flexion.
The system used for naming compounds is called nomenclature. It provides rules and guidelines for naming chemical substances based on their chemical composition and structure. This naming system helps ensure clarity and consistency in identifying and communicating about different compounds.
The Aztects used naming based on situation and the astronomy of the days.
The internal and external oblique abdominis, transverse abdominis, and the rectus abdominis on the anterior (front) part of the body. The posterior (or back) ones include the quadratus lumborum iliacus and psoas major and minor. Forced expiration muscles are used in coughing but also are important in singing.