Presentation on theme: "Body Regions and Cavities and Terms of Orientation UEQ: How is the body organized? LEQ: How do we classify the different regions of the body? VOCAB: well.."— Presentation transcript:
Body Regions and Cavities and Terms of Orientation UEQ: How is the body organized? LEQ: How do we classify the different regions of the body? VOCAB: well.. Just follow along..
The 2 major Cavities: Dorsal and Ventral cavity 1. Dorsal cavity: consists of 2 main cavities (1.) Cranial cavity: within the skull. It houses the brain (2.) Vertebral canal: contains the spinal chord
Ventral Cavity consists of thoracic cavity, and adominopelvic cavity Thoracic cavity: o separated from the lower abdominopelvic cavity by the diaphragm (a thin muscles) o includes the heart and lungs
Ventral Cavity Abdominopelvic cavity: o Separated into 2 parts (1.) abdominal cavity: includes the stomach, liver, spleen, gallbladder, kidney, and most of the small and large intestines. Extends from the diaphragm to the top of the hip bones (2.) pelvic cavity: includes the large intestine, urinary bladder, and the internal reproductive organs enclosed by the hip bones
Name:_____________ Date:____________ Label each area correctly, hint all are cavities accept #5 which is a muscle that separates the two cavities
The Language of Anatomy To accurately describe body parts and position we have to have a reference point that is accepted universally. This is helpful when the coroner finds a body and must describe the body. Relative Position Terminology –Terms that describe the location of one body part with respect to another.
Body Planes Body planes and sections can be used to describe either the entire body or any part of the body such as an organ. There are several ways to “cut” body…
Relative Position Terminology Terms that describe the location of one body part with respect to another.
Sagittal plane A lengthwise cut that divides the body into the left and right portions. Median (midline): when the sagittal plane pass along the midline and divides the body into equal parts The red plane is median plane and the blue is a sagittal plane
Transverse plane A transverse plane (Also known as horizontal) is a cut that divides the body into inferior and superior portions
Coronal plane A Coronal plane is a section that divides the body into anterior and posterior portions
Anatomical Position Body erect Feet slightly apart Palms facing forward Thumbs point away from body Figure 1.7a
Anterior and Posterior Positions Anterior – –means towards the front Posterior – –opposite view of anterior; means toward the back
Medial and Lateral Medial - –relates to an imaginary midline dividing the body into equal left and right halves. Body part is medial if it is close to the midline. (Nose is medial to the eyes) Lateral – –means toward the side with respect to the imaginary midline (Ears are lateral to the eyes)
Superficial and Deep Superficial – –situated near the surface Deep – –parts that are more internal
Proximal and Distal Proximal – –describes a body part that is closer to a point of attachment than another body part. (Elbow is proximal to the wrist) (The point of attachment is shoulder) Distal – –opposite of proximal; particular body part is farther from a point of attachment than another body part. (Fingers are distal to the wrist)