For example, the external oblique muscle of the abdomen is deep to the skin. The intercostal muscles run between the ribs. In some taxa not all four pairs of eyes are present, the relevant species having only three, two, or one pair of eyes.
In what is seen as the likeliest ancestral arrangement of the eyes of the Araneae, there are two roughly parallel, horizontal, symmetrical, transverse rows of eyes, each containing two symmetrically placed pairs, respectively called: Also, either one row or both might be so grossly curved that some of the notionally anterior eyes Directional terms may lie posterior to some of the eyes in the posterior row.
Arteries of Pelvis The human body consists of an axial portion, the head, neck, and trunk, and an appendicular portion, the upper and lower limbs and their girdles. Superior The heart Directional terms superior to the diaphragm. Dorsal and ventral[ edit ] These two terms, used in anatomy and embryologyrefer to back dorsal and front or belly ventral of an organism.
For example, while the ears would be superior to above the shoulders in a human, this fails when describing the armadillowhere the shoulders are above the ears. Depending on the organism, some terms are taken by analogy from vertebrate anatomy, and appropriate novel terms are applied as needed. Anterior refers to what is in front from Latin ante, meaning "before" and posterior, what is to the back of the subject from Latin post, meaning "after".
Proximal and distal[ edit ] "Proximal" and "distal" redirect here. Elongated organisms[ edit ] In organisms that maintain a constant shape and have one dimension longer than the other, at least two directional terms can be used.
Viscus can also be used to mean "organ". Dental terminology Fields such as osteologypalaeontology and dentistry apply special terms of location to describe the mouth and teeth. For example, in Directional terms anatomical position the most superior part of the human body is the head, and the most inferior is the feet.
For example, structures at the level of the fourth cervical vertebra may be abbreviated as "C4", at the level of the fourth thoracic vertebra "T4", and at the level of the third lumbar vertebra "L3". Similarly, in the lower leg, structures near the tibia shinbone are tibial and structures near the fibula are fibular or peroneal.
There is typically no basis for the definition of a third axis. Other directional terms[ edit ] Several other terms are also used to describe location.Learn directional terms with free interactive flashcards.
Choose from different sets of directional terms flashcards on Quizlet. Taking A&P? Our blog post on anatomical position and directional terms will steer you in the right direction. Free Essay: Anatomical Terms Certain terms are used to describe the location of body parts, regions of the body, and imaginary planes by which the body can.
Learn Directional terms facts using a simple interactive process (flashcard, matching, or multiple choice). Finally a format that helps you memorize and understand. Browse or search in thousands of pages or create your own. Anatomical position is always the default and all directional terms and body positions are spoken in terms of anatomical position so that medical personnel are in synch.
DIRECTIONAL TERMS FOR ANATOMY AND PHYSIOLOGY 1 Anatomy- DIRECTIONAL TERMS study guide by dawnroberts includes 13 questions covering vocabulary, terms and more. Quizlet flashcards, activities and games help you improve your grades.Download