Exam 1 The Body Plan Flashcards

1
Q

Postcranial Skeleton

A

Everything else: the vertebrae, ribs and limb bones.

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2
Q

Axial Skeleton

A

Portions of the post-cranial skeleton that comprise the main axial or trunk of the body.
Includes the vertebrae, ribs, and sternum.

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3
Q

Appendicular Skeleton

A

Composed of the appendages or limbs.

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4
Q

Ventral

A

The belly or underside of a body.

Ex: The naval is ventral to the spine.

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5
Q

Cranial

A

Towards the head.

Ex: The heart is cranial to the liver.

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6
Q

Caudal

A

Closer to the tail than another structure.

Ex: the hip (pelvis) is caudal to the ribs.

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7
Q

Dorsal

A

Towards the back.

Ex: The spine is dorsal to the breast bone (sternum).

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8
Q

Proximal

A

Closer to the point of attachment (origin) to the body than another structure.
Ex: the femur or thigh bone is the proximal bone of the rear leg.

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9
Q

Distal

A

Farther from the point of attachment to the body than another structure.
Ex: the phalanges (bones of the digit) (fingers) are distal to the carpal bones (carpals)(wrist).

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10
Q

Planes

A

Are imaginary lines that are used descriptively to divide the body into sections , making it possible to “look inside” and observe the structures of the body.

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11
Q

Dorsal plane

A

Plane that divides the body into dorsal (back) and ventral (belly) parts.

Also called the FRONTAL an CORONAL planes.

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12
Q

Transverse plane

A

Divides the body into cranial and caudal parts.

It is also called the horizontal plane or cross sectional plane.

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13
Q

Sagittal plane

A

A vertical plane that divides the body into right and left sides.

If plane passes the midline of the body and divides it into equal right and left sides, is called a MIDSAGITTAL (MEDIAN) PLANE.

If it doesn’t pass through the midline and divides the body unequally right and left is called PARASAGITTAL PLANE.

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14
Q

Body cavity

A

Is a hole or hollow space within the body that contains, protects, separate, and support internal organs.

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15
Q

Cranial Skeleton

A

Consists of the cranium, the mandibles, hyoids (supports the tongue).

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16
Q

Cranial cavity

A

Hollow space in the skull that contains the brain.

17
Q

Spinal cavity

A

Hollow space within the spinal column that contains the spinal cord.

18
Q

Thoracic (chest) cavity

A

Hollow space within the ribs between the neck and diaphragm that contain the heart and lungs.

19
Q

Abdominal cavity

A

Hollow space between the diaphragm and pelvic cavity that contains the major organs of digestion.

20
Q

Pelvic cavity

A

Hollow space that contains:

  • Sigmoid colon, rectum and anus.
  • Urinary bladder
  • organs of the reproductive system.
21
Q

Serous Membrane

A

Thin, slipper tissue that lines the body cavities walls and covers the organs within them.

-Double-layered membrane.

22
Q

Visceral serous membrane

A

Inner membrane in contact with the organ .

23
Q

Parietal serous membrane

A

Outer membrane which lines the cavity.

24
Q

Thoracic cavity
COMPARTMENT 1
The two pleural cavities

A
  1. Each surrounds a lung.
  2. Fluid filled space between the part of the serous membrane that covers the lung and the part that lines the wall of the thoracic cavity.
  3. The serous membrane associated with the lungs is called the PLEURA.
25
Q

Thoracic cavity
COMPARTMENT 2
The Mediastinum

A
  1. The area between the lungs
  2. Occupied by the heart, great vessels, trachea, right and left bronchi, esophagus,lymph nodes, lymph vessels and nerves.
26
Q

Thoracic cavity
COMPARTMENT 3
The pericardial cavity

A
  1. Surrounds the heart
  2. A fluid filled space between the part of the serous membrane that covers the heart and the part that lines the thoracic cavity.
  3. The visceral pericardium covers the heart
27
Q

The Abdominopelvic Cavity

PERITONIUM

A

The serous membrane that lines the abdominopelvic cavity and covers the organs within it.

28
Q
The Abdominopelvic Cavity
THE CRANIAL (FRONT) PORTION
A

The abdominopelvic cavity, abdominal cavity that contains the stomach, spleen, liver, gallbladder, pancreas, small intestine, and most of the large intestine.

29
Q
The Abdominopelvic Cavity
THE CAUDAL (REAR) PORTION
A

The pelvic cavity contains the urinary bladder, portions of the large intestine, and the internal organs of reproduction.

30
Q

Mesenteries

A

Fused tissues. They also permit blood vessels and nerves to connect with their organs.

31
Q

Retroperitoneal organs

A

Kidneys and pancreas are considered to be retroperitoneal organs , because they are located behind the peritoneum.