Anatomy Midterm at University Of Prince Edward Island | Flashcards & Summaries

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Lernmaterialien für Anatomy Midterm an der University of Prince Edward Island

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What are hair horns 

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 rhinoceroses

- consists of densely packed hair-like fibers 

- form a solid structure that is connected to

- nasal bone

- not shed

- both sexes have them



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Antlers 

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Characteristics of deer

- not cornified (like horns) but composed of dermal bone

- when growing, covered by vascular tissue  (velvet)

- replaced each year round

- found only in males except in caribou 


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What is the basic structure of skin in all vertebrates? 

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Epidermis, Dermis and Hypodermis 

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What are types of horns and antlers 

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1.  Bovine Horns and Pronghorns

2. Hair Horns

3. Antlers 

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Define Stratum Granulosum 

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Middle layer of the epidermis, consists of 3-5 layters of flattened keratinocytes undergoing apoptosis, none of the cells above this layer recieve any nutreints from blood vessels and therefore die. These cells secrete a substance between cells that act as a waterporofing agent 

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Amphioxus Epidermis 

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only one cell thick

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What are the multifunctions for the epidermis in amphioxus

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- produce mucus

- primitive keratinocytes 

- pigment granules 

- glycogen stod 

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Stratum Lucidum


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- found only in thickest skin, 

consist of few rows of flattened keratinocytes

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Stratum Corneum 


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- outermost layer, cells completely filled with keratin, protect skin against abrasion and penetration, also makes the skin waterproof, many layers of dead keratinocytes 


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What is the Function and General Structure of the Integumentary System 

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1. Protection

2. Sensory 

3. Respiration 

4. Excretion

5. Thermoregulation

6. Phenonal

7. Locomotion 


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Define the Dermis 

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- A layer of connective tissue 

- well supplied with blood vessels, nerve endings, glands

- Hair follicles and nail roots are embedded here

- smooth muscle attaches hair folliciles

- in hte face - skeletal muscle attach to dermal collagen fibers which is important for facial expression 

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What are types of bony armour? 

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Bony plates (dermal) - armadillo

Plates of compact hair - pangolin

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  • 63 Studierende
  • 1 Lernmaterialien

Beispielhafte Karteikarten für deinen Anatomy Midterm Kurs an der University of Prince Edward Island - von Kommilitonen auf StudySmarter erstellt!

Q:

What are hair horns 

A:

 rhinoceroses

- consists of densely packed hair-like fibers 

- form a solid structure that is connected to

- nasal bone

- not shed

- both sexes have them



Q:

Antlers 

A:

Characteristics of deer

- not cornified (like horns) but composed of dermal bone

- when growing, covered by vascular tissue  (velvet)

- replaced each year round

- found only in males except in caribou 


Q:

What is the basic structure of skin in all vertebrates? 

A:

Epidermis, Dermis and Hypodermis 

Q:

What are types of horns and antlers 

A:

1.  Bovine Horns and Pronghorns

2. Hair Horns

3. Antlers 

Q:

Define Stratum Granulosum 

A:

Middle layer of the epidermis, consists of 3-5 layters of flattened keratinocytes undergoing apoptosis, none of the cells above this layer recieve any nutreints from blood vessels and therefore die. These cells secrete a substance between cells that act as a waterporofing agent 

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Q:

Amphioxus Epidermis 

A:

only one cell thick

Q:

What are the multifunctions for the epidermis in amphioxus

A:

- produce mucus

- primitive keratinocytes 

- pigment granules 

- glycogen stod 

Q:

Stratum Lucidum


A:

- found only in thickest skin, 

consist of few rows of flattened keratinocytes

Q:

Stratum Corneum 


A:

- outermost layer, cells completely filled with keratin, protect skin against abrasion and penetration, also makes the skin waterproof, many layers of dead keratinocytes 


Q:

What is the Function and General Structure of the Integumentary System 

A:

1. Protection

2. Sensory 

3. Respiration 

4. Excretion

5. Thermoregulation

6. Phenonal

7. Locomotion 


Q:

Define the Dermis 

A:

- A layer of connective tissue 

- well supplied with blood vessels, nerve endings, glands

- Hair follicles and nail roots are embedded here

- smooth muscle attaches hair folliciles

- in hte face - skeletal muscle attach to dermal collagen fibers which is important for facial expression 

Q:

What are types of bony armour? 

A:

Bony plates (dermal) - armadillo

Plates of compact hair - pangolin

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