Week 8 Revision

Question 1

Skeletal muscle fibres are multi-nucleated. True or False?

Answer 1

True

Question 2

Which muscle fibres are the smallest? Skeletal, Smooth, or Cardiac?

Answer 2

Smooth

Question 3

Cardiac muscle contraction is regulated by the somatic nervous system. True or False?

Answer 3

False – it’s autonomic and myogenic.

Question 4

Muscle tissue can be excited by neurotransmitters, hormones, or pH. True or False?

Answer 4

True – all of the above.

Question 5

Which is NOT a connective tissue layer from deep fascia in skeletal muscle? Perimysium, Epimysium, Ectomysium, Endomysium

Answer 5

Ectomysium

Question 6

The sarcoplasmic reticulum stores and releases what?

Answer 6

Calcium

Question 7

Thick filaments are composed of what?

Answer 7

Myosin

Question 8

Intercalated discs are found in what muscle type?

Answer 8

Cardiac

Question 9

In multi-unit smooth muscle, gap junctions allow rapid transmission. True or False?

Answer 9

False – few or no gap junctions.

Question 10

Which muscle tissue has a branched network of mononucleated fibres?

Answer 10

Cardiac

Question 11

Which is NOT an epithelial membrane? Cutaneous, Synovial, Serous, Mucous

Answer 11

Synovial

Question 12

Which membrane lines body cavities that open to the exterior?

Answer 12

Mucous membrane

Question 13

Which membrane covers organs inside body cavities?

Answer 13

Serous membrane

Question 14

Serous membranes secrete what?

Answer 14

Serous fluid

Question 15

What epithelial tissue is found in the epidermis?

Answer 15

Keratinised stratified squamous epithelium

Question 16

Which cells in the epidermis produce melanin?

Answer 16

Melanocytes

Question 17

Which is NOT a layer of the epidermis? Stratum granulosum, Stratum ovale, Stratum spinosum, Stratum basale

Answer 17

Stratum ovale

Question 18

Which layer contains 25–30 layers of flat, dead cells forming a protective barrier?

Answer 18

Stratum corneum

Question 19

Which pigment gives skin a brown/black tone?

Answer 19

Eumelanin

Question 20

What is fibrosis?

Answer 20

The process of scar tissue formation

Question 21

The PNS divides into what?

Answer 21

Somatic and autonomic nervous systems

Question 22

The somatic nervous system is divided into sympathetic and parasympathetic. True or False?

Answer 22

False – that’s the autonomic system.

Question 23

Dendrites carry signals away from the cell body. True or False?

Answer 23

False – they carry signals toward the cell body.

Question 24

Myelin is produced by which cells?

Answer 24

Schwann cells and oligodendrocytes

Question 25

Gaps in axonal myelination occurring ~1mm apart are called?

Answer 25

Nodes of Ranvier

Question 26

White matter is made mostly of axons and support cells. True or False?

Answer 26

True

Question 27

Efferent neurons carry sensory info from receptors. True or False?

Answer 27

False – they carry motor signals.

Question 28

Which cells myelinate CNS axons?

Answer 28

Oligodendrocytes

Question 29

What flat cells surround neuron cell bodies in PNS ganglia?

Answer 29

Satellite cells

Question 30

Which star-shaped CNS cell supports neurons and forms the BBB?

Answer 30

Astrocytes