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Unit 1: The Human Body, Study notes of Anatomy

Outline of Unit 1 from A&P 1 at KSU

Typology: Study notes

2024/2025

Uploaded on 04/06/2025

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ANATOMY AND PHYSIOLOGY: THE HUMAN BODY NOTES
1) Define the terms anatomy and physiology; list and describe the subdivisions of these two areas
of study.
- Anatomy: the study of the body’s structures
oGross anatomy: can be seen with the naked eyes
Surface and systemic
oMicroscopic anatomy: cannot be seen with the naked eye. Microscopes
Cytology: study of cells
Histology: study of tissues
2) List the levels of organization in ascending and descending order. Briefly describe each level and
its relationship to the others.
Chemical -> Cellular -> Tissue -> Organ -> Organ System -> Organismal
-Chemical: atoms and molecules form together to make cells (the building blocks of life)
-Cellular: cells form to make organelles which form to make tissues
-Tissue: tissues (group of cells w same function). 2-4 tissues
-Organ: group of different tissues
-Organ system: group of different organs that work close together
-Organism: organ systems working together
3) Name and locate on the body all the regional terms from Figure 1.8 on page 13 of the text.
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ANATOMY AND PHYSIOLOGY: THE HUMAN BODY NOTES

  1. Define the terms anatomy and physiology; list and describe the subdivisions of these two areas of study.
  • Anatomy: the study of the body’s structures o Gross anatomy: can be seen with the naked eyes  Surface and systemic o Microscopic anatomy: cannot be seen with the naked eye. Microscopes  Cytology: study of cells  Histology: study of tissues
  1. List the levels of organization in ascending and descending order. Briefly describe each level and its relationship to the others. Chemical -> Cellular -> Tissue -> Organ -> Organ System -> Organismal -Chemical: atoms and molecules form together to make cells (the building blocks of life) -Cellular: cells form to make organelles which form to make tissues -Tissue: tissues (group of cells w same function). 2-4 tissues -Organ: group of different tissues -Organ system: group of different organs that work close together -Organism: organ systems working together
  2. Name and locate on the body all the regional terms from Figure 1.8 on page 13 of the text.

In pink notebook

  1. Name the five body cavities. Classify them as dorsal or ventral and describe their locations and boundaries. List one or two organs found in each cavity. DORSAL:
  • Cranial: skull and brain
  • Vertebrate: spinal cord VENTRAL:
  • Thoracic: heart, lungs
  • Abdominal pelvic: stomach, rectum, reproductive organs
  1. Define the terms: pleural cavity, pericardial cavity, and peritoneal cavity. Explain how they differ from the main body cavities described in the above objective.
  • Pleural cavity is the cavity that surrounds the lungs
  • Peritoneal: abdominal cavity that surrounds the abdomen
  • Pericardial: surrounds the heart.
  • All is broken into the parietal (wall lining) or the visceral (organ lining)
  1. Define the following common planes of section & give examples of each: transverse, sagittal/mid-sagittal, frontal/coronal.
  • Sagittal/mid-sagittal: divides the body into right or left parts
  • Frontal/coronal divides the body into anterior and posterior parts
  • Transverse: superior and inferior
  1. Define the following pairs of directional anatomy terms and be able to use them to describe locations of structures in the body: anterior vs. posterior: anterior means the front, posterior means the back. The heart is anterior to the spinal cord. The vertebral cavity is posterior to the thoracic cavity. ventral vs. dorsal: anterior (ventral) and dorsal (posterior) ^^ inferior vs. superior: Inferior (caudal) means below. Superior (cranial, cephalic) means above. The knee (patellar) is superior to the ankle (tarsal) The shoulder (acromial) is superior to the elbow (cubital) deep vs. superficial: deep means more internal, superior means more external. The skin is superior to the lungs. The parietal pericardial is superficial to the visceral pericardial. lateral vs. medial: lateral is farther away from the midline, medial is closer to the midline. The wrist (carpal) is lateral to armpit (axillary). The breasts (mammary glands) are medial to the shoulder (abicromial). distal vs. proximal: distal is further away from the attached base, and proximal is closer to the attached base. The big toe (hallux) on the foot (metacarpal) is distal to the calf (sural). The elbow (ole cranal) is proximal to the fingers (digital). caudal vs. cranial or cephalic: other words for superior and inferior

Stimuli is the heat. The receptor gets the message that your body is overheating, which sends a afferent pathway to the control center (the brain) which sends sweat glands (efferent pathway and effector) so that your body can cool down. The blood vessels receive the signal and dilate, cooling down the body