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Bio 30 > Chapter 11 > Flashcards

Chapter 11 Flashcards

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Biology 101 flashcards
1
Q

What is homeostasis?

A

It’s the state of being relatively stable.

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2
Q

Grey matter

A

Contains cell bodies, dendrites, and unmylienated

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3
Q

White matter

A

Mylienated axons

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4
Q

If the CNS is damaged, what can be affected?

A

Temperature, motor control, homeostasis

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5
Q

Meninges

A

3 layers of tough elastic tissue protects the brain and CNS

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6
Q

Cerebellum

A
  • Walnut shaped
  • controls unaware coordination of posture, reflexes, and body movement.
  • receives info from proprioceptors
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7
Q

Mendulla Oblongata

A

Controls unaware responses such as heart rate, blood pressure, breathing, coughing, swallowing and coughing.

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8
Q

Pons

A

Relay centre between the left and right halves of the cerebrum.

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9
Q

Blood-brain barrier

A

Protects and supplies brain with nutrients and oxygen, because the blood capillaries leading to the brain are tightly fused and can block out toxins and infectious agents.

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10
Q

Cerebrospinal fluid

A

Transports hormones, white blood cells, and nutrients across the blood-brain barrier.

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11
Q

Cerebral cortex

A

Responsible for language, memory, personality, vision, and conscious thought.

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12
Q

Corpus callousness

A

Sends message from one cerebral hemisphere to the other.

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13
Q

Occipital lobes

A

Receives and analyzes visual info.

recognizing what is being seen

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14
Q

Temporal lobes

A

Main function is auditory reception.

*linked to understanding speech and retrieving visual and verbal memories.

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15
Q

Partial lobes

A

Receives processing info from the skin.

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16
Q

Frontal lobes

A

Control reasoning, critical thinking, memory and personality.

17
Q

Thalamus

A

Connects various parts of the brain.

18
Q

Hypothalamus

A

Controls pituitary gland, heart rate, blood pressure, and temp.

19
Q

Broca’s area

A

Controls muscles for speaking and translation through speech

20
Q

Werenicks area

A

Stores info involved in language comprehension. If effected words make little sense.

21
Q

Estrogen

A

Promotes the development of female sex characteristics

22
Q

Progesterone

A

Prevents uterine contractions

Periods

23
Q

Pancreatic gland

A

Contains exocrine and endocrine gland
Is tests of Langerhans= cluster of cells
Alpha and beta

24
Q

Insulin

A

Released after a meal when blood glucose is high.
Target= muscle, liver cells plus body cells
Actions= makes cells more permeable to glucose decreasing blood sugar levels.

25
Q

Glycogen

A

Released after exercise or fasting when blood glucose is low

*Muscle liver cells

26
Q

Diabetes insipidus

A

Due to low ADH production.

Decreased water reabsorption in kidneys.

Produces large urine production, excessive thirst.

27
Q

Pituitary Dwarfism

A

Low GH secretion during childhood

*treatment hGH injections during childhood

28
Q

Gigantism

A

High GH during childhood

Results in excessive growth during childhood

29
Q

Acromegaly

A

Continual secretion of GH into adulthood

After growth plates have fused at the end of adolescents, other bones respond to GH since bones can no longer grow.

Bones grow out instead of long way.

30
Q

Hypothyroidism

A

Low thyroid secretions

Sugar NOT utilized fast

Symptoms: weight gain, low energy, cold, dry skin, hoarse voice and low sperm count in males/ low testosterone

Crotism: child with very low thyroxin develops poorly sexually and mentally as well as physically

31
Q

ADH

A

Target= kidney

Increases water reabsorption in the nephron

Diabetic insipidus

32
Q

Oxytocin

A

Target= mammory glands and uterus

Initiates milk release

33
Q

PRL

A

Target= Mammory glands

Stimulates and maintains milk production

34
Q

FSH

A

Target= Ovaries and testies

Stimulates foccile development and promotes development of sperm cells.

35
Q

LH

A

Ovaries and testies

36
Q

Peripheral nervous system

A

Sensory receptors in the head and extremities.

Nerves carry sensory info to the central nerves system to the skeletal muscle

Automatic system controls functioning of smooth cardiac muscles

Sympathetic and parasympathetic control involuntary process such as heart beat and peristalsis

Bio 30 (1 decks)

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