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SpyIntel [72]
4 years ago
13

A. darwin's theory of evolution by natural selection has been solidly demonstrated.

Biology
1 answer:
Sedaia [141]4 years ago
8 0

a. true

b. false

c. false

d. false

e. true

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What is represented by the base root of a phylogenetic tree?
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What is the first thing that a gland does to maintain homeostasis in your body?
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Hell p please
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Answer:

<u>A. Body planes</u>

1. Sagittal: cut along the lengthwise plane of the body. divides left and right parts.

2. Mid-sagittal: cut exactly down the median. divides left and right parts equally. (would cut vertically down the nose)

3. Coronal/frontal: divides the body into anterior and posterior parts

4. Transverse/horizontal:cut along the lengthwise plane. divides anterior and posterior. (coronal section)

<u>B. Directional terms</u>

1. Superior: toward the head end or upper part of a body structure. above. (AKA cranial or cephalad) The face is superior to the neck.

2. Inferior: away from the head end or toward the lower part of a structure or the body. (AKA caudal) The navel is inferior to the chin.

3. Anterior: toward or at the front of the body. (AKA ventral). The windpipe (trachea) is anterior to the esophagus.

5. Posterior: toward or at the backside of the body. (AKA dorsal). The heart is posterior to the sternum.

7. Medial: toward or at the midline of the body. The bridge of the nose is medial to the eyes.

8. Lateral:away from the midline of the body. The eyes are lateral to the nose.

9. Proximal: close to the origin of the body part or point of attachment of a limb.

10. Distal: farther from the origin of a body part or the point of attachment of a limb. the foot is distal to the knee.

11. Superficial: toward or at the body surface. (AKA external). The skin is superficial to the muscles.

12. Deep:away from the body surface (AKA internal). The intestines are deep to the spine.

<u>C. Body cavities</u>

1. Dorsal: consists of two subdivisions which are continuous with each other: cranial cavity and spinal cavity

2. Cranial: space inside the skull

3. Spinal: extends from cranial cavity almost to the end of the vertebral column. protected by the vertebrae

4. Thoracic: separated from rest of ventral cavity by the diaphragm. contain heart, lungs, etc that are protected by the rib cage

5. Abdominal: contains stomach, liver, intestines, etc

6. Pelvic: contains reproductive organs, bladder, and rectum

<u>D. Quadrants : </u>

1. Right upper quadrant (RUQ): Lobe of the liver is located and gallbladder. contains liver, gallbladder, small and large intestines

2. Left upper quadrant (LUQ): Main portion of the stomach. contains stomach, pancreas, spleen, small and large intestines

3. Right lower quadrant (RLQ): The Cecum, appendix, and part of the small intestine are located. contains small and large intestines, appendix, female ovary and uterus, bladder.

4. Left lower quadrant (LLQ): Descending colon. Contains small and large intestines, female ovary and uterus, bladder

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