Major anatomical regions landmarks directions and cavities

Farther away from the midline of the body or a structure Ipsilateral On the same side of the body or structure Contralateral

Major anatomical regions landmarks directions and cavities

Directional Terms In general, directional terms are grouped in pairs of opposites based on the standard anatomical position. Superior means above, inferior means below. The elbow is superior above to the hand. The foot is inferior below to the knee.

Anterior means toward the front chest side of the body, posterior means toward the back. Medial means toward the midline of the body, lateral means away from the midline.

Ipsilateral means on the same side—the left arm is ipsilateral on the same side to the left leg. Proximal means closest to the point of origin or trunk of the body, distal means farthest away.

Chapter 1: Introduction; Directional Terms; Body Cavities

Proximal and distal are often used when describing arms and legs. If you were describing the shin bone, the proximal end would be the end close to the knee and the distal end would be the end close to the foot. In the fingers of the hand, a proximal joint is closest to the wrist and a distal joint is farthest from the wrist.

Superficial means toward the body surface, deep means farthest from the body surface. Intermediate — means between—your heart is intermediate to your lungs. Caudal — at or near the tail or posterior end of the body. Visceral — may be used instead of deep.

There are also terms that describe specific body parts. Palmar describes the palm side of the hand. Dorsal describes the back side of the hand.

Plantar describes the bottom of the foot. Anatomical Reference Planes A plane is a two-dimensional surface — its dimensions are length and width. The body reference planes are used to locate or describe the location of structures in the body.

Brain scans are often of sagittal plane slices from ear to ear. Abdominal CAT scans are often transverse plane slices like a stack of coins. The three basic planes intersect at right angles to each other. When the three basic planes intersect in the center of the body as seen in the image to the right they can be used to describe various relationships within the body.

Main Reference Planes Sagittal plane median, wheel — this vertical top to bottom plane divides the body into left and right sides; a plane that divides the body down the middle into equal left and right sides is the Median Sagittal Plane.

Body Cavities Body cavities are areas in the body that contain our internal organs. The dorsal and ventral cavities are the two main cavities. The dorsal cavity is on the posterior back side of the body and contains the cranial cavity and spinal cavity.

In human anatomy, dorsal, caudal and posterior mean the same thing. The ventral cavity is on the front anterior of the body and is divided into the thoracic cavity chest and abdominopelvic cavity. Dorsal Cavity The dorsal cavity is further divided into subcavities: Ventral Cavity The ventral cavity is on the front of the trunk.

The diaphragm the main muscle of breathing divides the ventral cavity into two simple subcavities: It is further divided into the pleural cavities left and right which contain the lungs, bronchi, and the mediastinum which contains the heart, pericardial membranes, large vessels of the heart, trachea windpipeupper esophagus, thymus gland, lymph nodes, and other blood vessels and nerves.

The abdominal cavity is between the diaphragm and the pelvis. It is lined with a membrane and contains the stomach, lower part of the esophagus, small and large intestines except sigmoid and rectumspleen, liver, gallbladder, pancreas, adrenal glands, kidneys and ureters. The pelvic cavity contains the bladder, some reproductive organs and the rectum.

The thoracic cavity is open at the top and the abdominal cavity is open at the bottom. Both cavities are bound on the back by the spine.

Even though their location is defined, the shape of these cavities can change. How they change is very different. Breathing is the main way the shape of these two cavities changes. The abdominal cavity changes shape similar to a water-filled balloon.Anatomical Terminology Dr.

Major anatomical regions landmarks directions and cavities

A. Ebneshahidi. Anatomy • Anatomy: is the study of structures or Body cavities – hollow spaces within the human body that contain internal organs. a) Body regions • The abdominal area is subdivided into 9 regions.

Right Epigastric Left Hypochondriac Hypochondriac. Mapping the Body. Anatomical Position. Describe the major cavities of the human body.

BIO LAB 1. Anatomical Terminology, Positions, Planes, and • Demonstrate ability to use anatomical terms describing body landmarks, directions, planes, and surfaces. • Name the body cavities, and indicate important organs in each cavity. Identify and use anatomical terms to correctly label the following regions on Figure 1: BIO. Body cavities – hollow spaces within the human body that contain internal organs. a) Body regions • The abdominal area is subdivided into 9 regions. Right Epigastric Left Microsoft PowerPoint - Chap1-anatomical terminology [Compatibility Author. Human anatomy is primarily the scientific study of the morphology of the human body. Anatomy is subdivided into gross anatomy and microscopic anatomy. Gross anatomy is the study of anatomical structures that can be seen by.

Key Takeaways Key Points. Anatomical terminology for body cavities: Humans have multiple body cavities, including the cranial cavity, the vertebral cavity, the thoracic cavity (containing the pericardial cavity and the pleural cavity), the abdominal. Anatomical terminology for body cavities: Humans have multiple body cavities, including the cranial cavity, the vertebral cavity, the thoracic cavity (containing the pericardial cavity and the pleural cavity), the abdominal cavity, and the pelvic cavity.

In mammals, the diaphragm separates the thoracic cavity from the abdominal cavity. Study Anatomical Landmarks Flashcards at ProProfs - anatomical landmarks, directions, regions and quadrants.

Major anatomical regions landmarks directions and cavities

All directional terms reference position with regards to anatomical position even if the body in question is in a different position.

Name both the major and minor divisions. Spinal cord. Lungs. Brain. Liver. Bladder. Small intestine. regions, sections, planes, and cavities. BIO LAB 1. Anatomical Terminology, Positions, Planes, and • Demonstrate ability to use anatomical terms describing body landmarks, directions, planes, and surfaces.

• Name the body cavities, and indicate important organs in each cavity.

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