glenohumeral and trochleoginglymoid joints
Two
Biceps Brachii crosses both the Glenohumeral and Trochleoginglymoid joints. Sartorius crosses both the hip joint and knee. Others include tensor fascia lata, rectus femoris, semimembranosus, semitendinosus, biceps femoris, flexors of the forearm cross multiple joints as do the extensors. There are many others.
Biceps is a muscle that has two heads. It doens't really refer to a single muscle, because there are two biceps muscles. One is the biceps brachii which is one of the flexors of the elbow and the other is the biceps femoris, which extends the hip and flexes the knee.
The "biceps brachii" in the upper arm, for example, has two origins. This is shown in its name, "biceps," which means "two heads." It is attached to the scapula (shoulderblade) in two places
pigs do indeed have a muscle called the biceps brachii. It is one headed though unlike in humans where there are 2 heads.
One. The biceps brachii is a muscle, not a muscle group
The agonist being the biceps brachii group. The two synergist muscles that assist the biceps brachiiare the brachialis and to a lesser extent the brachioradialis.
The biceps brachii muscles, commonly called the "biceps muscle," its insertion on the radial tuberosity. The origin is actually in two places, one for each head of the biceps - the short head originates from the coracoid process of the scapula and the long head originates from the supraglenoid tubercle.
The biceps brachii muscles, commonly called the "biceps muscle," its insertion on the radial tuberosity. The origin is actually in two places, one for each head of the biceps - the short head originates from the coracoid process of the scapula and the long head originates from the supraglenoid tubercle.
Without joints, we would be immobile.
That would be your biceps muscle. The "two heads" in question are the muscle's two points of origin: on the coracoid process of the shoulder blade, and the glenoid cavity of the shoulder joint. The word "biceps" comes from the prefix bi-, meaning "two", and the root cap, "head" (the full Latin word for "head" is caput, capitis, n.). To be precise, this biceps is known as biceps brachii, the "biceps of the arm"; there's a second biceps in the thigh known as the biceps femoris.
Hip and knee joints