What are the joints of the pectoral girdle?

The pectoral girdle, consisting of the clavicle and the scapula, attaches each upper limb to the axial skeleton. The clavicle is an anterior bone whose sternal end articulates with the manubrium of the sternum at the sternoclavicular joint.

How many joints are in the pectoral girdle?

The shoulder girdle is composed of the clavicle and the scapula, which articulates with the proximal humerus of the upper limb. Four joints are present in the shoulder: the sternoclavicular (SC), acromioclavicular (AC), and scapulothoracic joints, and glenohumeral joint.

What is girdle joint?

The shoulder girdle, consisting of the collar bone (clavicle) and the shoulder blade (scapula) provides the bony link between the arm and the trunk. The three joints of the shoulder girdle are constructed to allow a wide range of arm movement, at the expense of stability.

What is the function of the girdle?

Functions of the Pectoral Girdle The pectoral girdle serves as a location of attachment for many muscles of the back, chest, and neck that help the upper limbs move. A unique characteristic of the pectoral girdle is that it can move in many directions.

What is pectoral girdle and pelvic girdle?

The pelvic girdle consists of two bones: sacrum and the coccyx. The pelvic girdle is formed of paired hip bones each made up of ilium, ischium and pubis. The pectoral girdle is part of the appendicular skeleton which are for the upper limbs. In human beings, the pectoral girdle consists of the scapula and the clavicle.

What muscle is pectoral girdle?

Muscles that position the pectoral girdle are located either on the anterior thorax or on the posterior thorax ([link] and [link]). The anterior muscles include the subclavius, pectoralis minor, and serratus anterior. The posterior muscles include the trapezius, rhomboid major, and rhomboid minor.

What is the main action of the muscles of the pectoral girdle?

The posterior muscles of the pectoral girdle work to elevate the shoulders, retract (pull together) the scapula, move the arm, and assist in pulling the head back. The major muscles in the pectoral girdle on the posterior side of the body are the rhomboid major and minor and the trapezius.

What is the role of girdles in skeleton?

Solution : Girdles provide connection between the axial skeleton and limbs.

What is pectoral and pelvic?

The pectoral girdle is situated in the pectoral region of the body and joins the upper limb to the body. The pelvic girdle is situated in the pelvic region of the body and joins the lower limb to the body. 2. It is composed of two bones namely clavicle or collar bone and scapula.

What is a pelvic girdle?

pelvis, also called bony pelvis or pelvic girdle, in human anatomy, basin-shaped complex of bones that connects the trunk and the legs, supports and balances the trunk, and contains and supports the intestines, the urinary bladder, and the internal sex organs.