Question

2 multiple choice 1 point what type of joint is a hip joint? an ellipsoidal joint a pivot joint a ball - and - socket joint a hinge joint 3 multiple choice 1 point what occurs when an organ or tissue protrudes through an area of weak muscle? hernia tendonitis scoliosis reflex

Explanation:

Question 2

The hip joint is a type of synovial joint. A ball - and - socket joint (also known as a spheroidal joint) has a rounded, ball - like end of one bone fitting into a cup - like socket of another bone. The hip joint consists of the head of the femur (which is ball - shaped) fitting into the acetabulum (the socket - like structure of the pelvis). Ellipsoidal joints have an oval - shaped end of one bone fitting into an elliptical cavity of another, pivot joints allow for rotational movement around a single axis, and hinge joints allow movement in one plane (like the knee or elbow). So the hip joint is a ball - and - socket joint.

A hernia is defined as the protrusion of an organ or tissue through an area of weak muscle or a weak spot in the surrounding connective tissue. Tendonitis is the inflammation of a tendon. Scoliosis is a lateral curvature of the spine. A reflex is an involuntary and nearly instantaneous movement in response to a stimulus. So when an organ or tissue protrudes through an area of weak muscle, it is a hernia.

Answer:

C. a ball - and - socket joint

Question 3