17 Questions
What is the main function of the subcutaneous layer?
Storing fat
Which type of nerve endings are present in the subcutaneous layer that are sensitive to pressure?
Pacinian corpuscles
Which layer of the skin is composed of keratinized stratified squamous epithelium?
Epidermis
What is the main function of the integumentary system listed in the text?
Regulating body temperature
Which cells are NOT found in the epidermis?
Fibroblasts
What are the nerve endings sensitive to pressure in the subcutaneous layer called?
Pacinian corpuscles
Which region of the skin contains epidermal ridges and sweat pores?
Papillary region
In the anatomical position, the thumb is ipsilateral to the little finger.
True
Your buttocks are distal to your knees.
False
Your right foot and right hand are contralateral to each other.
False
Your knee is superficial compared to your thigh.
False
Your lungs are anterior to your spinal column.
True
Your breastbone is distal to your chin.
True
Your calf is superficial compared to your heel.
True
The pericardial cavity contains the brain.
False
The abdominal cavity contains the stomach and liver.
True
The pleural cavity is a fluid-filled space that surrounds a lung.
True
Study Notes
Homeostasis and Regulation
- The body has regulating systems to maintain internal balance and counteract changes
- The nervous system and endocrine system work together or independently to regulate homeostasis
- The nervous system uses electrical signals (nerve impulses) to counteract changes
- The endocrine system uses hormones to regulate the body
Feedback Systems
- Feedback systems monitor and regulate internal conditions
- Three components of a feedback system: receptor, control center, and effector
- Feedback systems work through negative feedback loops
Body Cavities
- The body has different cavities, including the cranial cavity, vertebral canal, thoracic cavity, abdominopelvic cavity, and pelvic cavity
- Each cavity has specific organs and structures within it
Anatomical Terminology
- Anatomical terms are based on Greek and Latin words
- Anatomical position: standing erect, facing forward, with feet flat on the floor and palms facing forward
- Body regions have anatomical and common names (e.g., cephalic region = head)
Integumentary System
- The integumentary system contributes to homeostasis by protecting the body and regulating body temperature
- The subcutaneous layer stores fat and contains large blood vessels and nerve endings (pacinian corpuscles)
Skeletal System
- The skeletal system provides support and protection for the body
- Functions include supporting the body, providing surface area for muscle attachments, aiding body movements, housing cells that produce blood cells, and storing minerals and lipids
Test your knowledge on how the nervous system and endocrine system work together or independently to regulate homeostasis in the body. Explore how nerve impulses and messenger molecules play a crucial role in maintaining internal balance.
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