body cavities- unit 2

Question 1

cranial cavity

Answer 1

is located in the head surrounded by the skull. The cranial cavity contains the brain and other organs, such as the pituitary gland.

Question 2

thoracic cavity

Answer 2

also known as the chest cavity, is surrounded by the breastbone and ribs. The lungs, heart, trachea (windpipe), bronchial tubes, larynx, esophagus, pleura cavity, and mediastinum (containing the heart)

Question 3

abdominal cavity

Answer 3

is the space below the thoracic cavity. The diaphragm is the muscle that separates the abdominal and thoracic cavities. Organs in the abdomen include the stomach, liver, gallbladder, and small and large intestines.

Question 4

pelvic cavity

Answer 4

below the abdominal cavity. The pelvic cavity is surrounded by the pelvis (bones of the hip). The major organs located within the pelvic cavity are the urinary bladder, ureters (tubes from the kidneys to the bladder), urethra (tubes from the bladder to the outside of the body), rectum, and anus, and the uterus (muscular organ that nourishes the developing embryo and fetus) in females.

Question 5

spinal cavity

Answer 5

This is the space surrounded by the spinal column (backbone). The spinal cord is the nervous tissue within the spinal cavity. Nerves enter and leave the spinal cord and carry messages to and from all parts of the body.

Question 6

Frontal (coronal) plane

Answer 6

A vertical plane that divides the body, or body part such as an organ, into the front and back portions
Anatomically, anterior means the front portion, and posterior means the back portion

Question 7

Sagittal (lateral) plane

Answer 7

A vertical plane that divides the body or organ into right and left sides. The midsagittal plane divides the body vertically into right and left halves.

Question 8

Transverse (axial) plane

Answer 8

A horizontal plane that divides the body or organ into upper and lower portions, as in a cross-section. (think of cutting a long loaf of French bread into a circular section.)

Question 9

Magnetic resonance imaging (MRI)

Answer 9

is another technique for producing images of the body. With MRI, magnetic waves instead of x-rays are used to create the images, which show organs and other structures in specialized detail and in all three planes of the body.