Get premium membership and access questions with answers, video lessons as well as revision papers.
i) skeletal muscles
- Also called voluntary/striated/stripped muscles
- They are attached to skeleton
-They consist of striated, multinucleated, ling fibers and are cylindrical shaped
-Found on legs, arms, eyes, neck where they cause movement
ii) Involuntary muscles
-Also called smooth/visceral/unstriated/unstripped
-Their movement is not controlled by the will
-They are unstriated, nucleated, short fibred and spindle shaped
-Are found in alimentary canal, blood vessels, secretory glands, other tubular visceral
organs, bladder, uterus, urinary tract, reproductive system, respiratory tract, ciliary body,
iris
iii) Cardiac muscles
-Also called myocardium
-Found in the walls of the heart
-Are not under control of the will
-Composed of long cylindrical cells with special junctions
-Myogenic i.e. generate their own contraction
-They are not fatigued
-Their function is contraction of the heart to pump blood
ericmunguti answered the question on October 9, 2018 at 07:14
- What is a muscle?(Solved)
What is a muscle?
Date posted: October 9, 2018. Answers (1)
- What is a joint?
(Solved)
What is a joint?
Date posted: October 9, 2018. Answers (1)
- What are the vertebrae?(Solved)
What are the vertebrae?
Date posted: October 9, 2018. Answers (1)
- Name the organ used for support by animals (Solved)
Name the organ used for support by animals
Date posted: October 9, 2018. Answers (1)
- How is a desert camel adapted to survive in the desert conditions?(Solved)
How is a desert camel adapted to survive in the desert conditions?
Date posted: October 9, 2018. Answers (1)
- Name the types of plant stems.(Solved)
Name the types of plant stems.
Date posted: October 9, 2018. Answers (1)
- What is locomotion?(Solved)
What is locomotion?
Date posted: October 9, 2018. Answers (1)
- What is support?(Solved)
What is support?
Date posted: October 9, 2018. Answers (1)
- State the changes which would take place in the eye if a person in a dark room had lights switched on.(Solved)
State the changes which would take place in the eye if a person in a dark room had lights switched on.
Date posted: October 9, 2018. Answers (1)
- What changes occur in the eye if it changes from observing an object at a distance to one at a closer range?(Solved)
What changes occur in the eye if it changes from observing an object at a distance to one at a closer range?
Date posted: October 9, 2018. Answers (1)
- What is a conditioned reflex?(Solved)
What is a conditioned reflex?
Date posted: October 9, 2018. Answers (1)
- Briefly describe the transmission of a nervous impulse across a neuro-muscular
junction.(Solved)
Briefly describe the transmission of a nervous impulse across a neuro-muscular
junction.
Date posted: October 9, 2018. Answers (1)
- Describe the structure and function of sensory neuron(Solved)
Describe the structure and function of sensory neuron.
Date posted: October 9, 2018. Answers (1)
- Draw the structure of a motor neurone(Solved)
Draw the structure of a motor neurone.
Date posted: October 9, 2018. Answers (1)
- What are the functions of the central nervous system?(Solved)
What are the functions of the central nervous system?
Date posted: October 9, 2018. Answers (1)
- Name the main systems for coordination in animals.(Solved)
Name the main systems for coordination in animals.
Date posted: October 9, 2018. Answers (1)
- The diagram below represents growing seedlings which were subjected to unilatera llight at the beginning of an experiment. (i) State the results of P, Q and R...(Solved)
The diagram below represents growing seedlings which were subjected to unilateral light at the beginning of an experiment.
(i) State the results of P, Q and R after 5 days.
(ii) Account for your results in (i) above
(iii) If the tin foil were removed from the tip of seedling R, what results would be observed after 2 days.
(iv) State the expected results after 3 days if the boxes were removed.
Date posted: October 9, 2018. Answers (1)
- State the ways in which tropisms are important to plants.(Solved)
State the ways in which tropisms are important to plants.
Date posted: October 9, 2018. Answers (1)
- Explain the various types of tropism in plants .(Solved)
Explain the various types of tropism in plants.
Date posted: October 9, 2018. Answers (1)
- Define the term tropism(Solved)
Define the term tropism
Date posted: October 9, 2018. Answers (1)