Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

The Lego Bricks Of Life > Tissues > Flashcards

Tissues Flashcards

1
Q

What is the ECM

A

Extracellular Matrix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the composition of the ECM?

A
  • It is a non-cellular structure
  • It is a highly dynamic structural network that continuously undergoes remodeling mediated by several matrix-degrading enzymes during normal and pathological conditions.

Main Components: Protein, glycosaminoglycan and glycooconjugate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where do you find nervous tissue in the body?

A

Primary tissue that composes the central nervous system and the peripheral nervous system.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the central nervous system?

A

Brain and spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the difference between somatic and autonomic nervous system?

A

Both are part of the peripheral nervous system.

Somatic: Voluntary control of body movements (except reflex arcs)
Autonomic: Involuntary control of body movements. Two types: Sympathetic and parasympathetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the difference between Smpathetic and parasympathetic nervous systems?

A

Both are part of the Autonomic nervous system.

Sympathetic: Stress
Parasympathetic: Calm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the Soma of a neuron?

A

The central body.

It contains nucleus, associated cytoplasm and other organelles (High concentration of mitochondria and rER)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the task of the Axon hillock?

A

Where membrane potentials are summaries before entering the axon.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the axon of a neuron?

A

This part of the neuron transmits and extends away from the soma . It typically carries signals away from the cell body.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is saltatory conduction?

A

Saltatory conduction is the propagation of action potentials along myelinated axons from one node of Ranvier to the next node, increasing the conduction velocity of action potentials.

  • Schwann cells wrap around axons and form insulating myelin sheat
  • Nodes of ranvier: Gaps of the myelin sheath with a high concentration of ion channels

Fast conduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are dendrites of a neuron?

A

Tree-like structures that receive excitatory and inhibitory postsynaptic potentials (EPSPs and IPSPs) from other cells.
Are part of the synapse (Post synapse)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is an unipolar neuron?

A

Have a single axon going to and from the soma.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is a bipolar neuron?

A

Have one axon and one dendrite.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is a multipolar neuron?

A

Have one axon and multiple dendrites?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a sensory neuron?

A

Receives signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is a motor neuron?

A

Bound to muscle tissue.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is an Interneuron?

A

Connects different neurons with each other.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are glia cells/neuroglia ?

A

Do not conduct nerve impulses, but a number of support functions for nervous tissue.
Maintain homeostasis, provide myelin and support and protect neurons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is another name for soma?

A

Perikaryon

20
Q

What are the functions of neuroglia?

A
  • Physical support
  • Protection
  • Insulation repair of injury
  • Repair
  • Supply of nutrients
  • Clearance of neurotransmitters
21
Q

What are the 6 types of neuroglia?

A
  • Schwann cells
  • Oligodendrocytes
  • Astrocytes
  • Ependyma
  • Microglia
  • Satellite Cells
22
Q

Wich neuroglia are part of the peripheral ns?

A

Satellite cells and Schwann cells

23
Q

Wich neuroglia are part of the central ns?

A

Ependymal cells
Oligodendrocytes
Astrocytes
Microglia

24
Q

Where do you find epithelial tissue in the human body?

A

Consists of tightly packed sheets of cells that cover surfaces.

25
Q

What is the function of epithelial tissue?

A
  • Barrier
  • Secretion
  • Absorption
  • Transportation
  • Protection
  • Receptors
26
Q

What are the three surface domains of epithelial cells?

A

Apical domain: On top
Lateral domain: On the sides
Basal domain: bottom (attached to basal lamina)

27
Q

What are possible shapes of epithelial cells?

A
  • Squamous (flat)
  • Cubuidal
  • Columnar (log)
28
Q

What are different types of epithelium layers?

A
  • Simple (One cell layer)
  • Stratified (Two or more cell layers)
  • Pseudostratified
29
Q

What is the basal lamina composed of?

A

Special type of collagen and various other macromolecules.

30
Q

What is the difference between exocrine and endocrine glands?

A

Exocrine: Continuous with surface via duct
Endocrine: Disconnected of surface (Inside the body)

31
Q

What is a Merocrine gland?

A

No part of the cells is lost while secretion.

32
Q

What is a Apocrine gland?

A

The tops of the cells are lost while secretion

33
Q

What is a holocrine gland?

A

Whole cells are lost while secretion

34
Q

What are the general functions and properties of muscle tissue?

A

Muscle tissue is made of excitable cells that are capable of contraction.
It is the most abundant tissue in humans.

35
Q

What is the most abundant tissue in humans?

A

Muscle tissue

36
Q

What are Myofilaments?

A

Responsible for contraction.

  • Thin actin filaments
  • Thick myosin filaments
37
Q

How can you classify muscle tissue?

A
  • Skeletal muscle (striated)
  • Cardiac muscle (striated)
  • Smooth muscle (non striated)
38
Q

Wich muscle tissue is involuntary controlled?

A

Smooth and cardiac muscle tissue

39
Q

Wich muscle tissue is voluntary controlled?

A

Skeletal muscle tissue

40
Q

Wich muscle tissue is the slowest?

A

Smooth muscle tissue

41
Q

What is the structure of smooth muscle tissue?

A
  • Does not contain sarcomeres
  • Actin-Myosin filaments cross the whole cell
  • Actin-Myosin filaments are connected to the cell wall over dense plaques
  • Can Streich much further than skeletal muscle cells
  • Cells are connected over desmosomes and gap junctions
42
Q

What are two types of smooth muscle tissue?

A

Multi-unit smooth muscle: Every cell acts independently and individually
Single-unit smooth muscle:Cells are connected via Gap junctions and communicate. They act as a functional syncytium.

43
Q

What are the main functions of skeletal muscle tissue?

A
  • Generates heat

- Moves the skeleton

44
Q

What is the main function of smooth muscle tissue?

A

Moves material trough organs

45
Q

What is the Structure of skeletal muscle?

A
  • Fusion of many cells: Contain multiple nuclei
  • Muscle fibers contain sarcomeres
  • Muscle fibers are packed into fasciae

The Lego Bricks Of Life (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions