Lab 9 The Endocrine System BIO201L
Student Name: Click here to enter text.
Access Code (located on the lid of your lab kit): Click here to enter text.
Pre-Lab Questions
\u201d1. What is the function of the endocrine system?\u201d
This includes,
(a)it controls blood glucose and other nutrients.
(b) It regurates water balance in the blood.
\u201d2. Research two types of hormones and describe the mode of action for each. \u201d
Parathyroid hormone, it connects to the receptors on the bones causing to produce calcium
into the blood cells.
Estrogens hormone,it helps to maintain the female charatarictic and reproduction.
\u201d3. Which gland is both endocrine and exocrine? \u201d
Pancreas
\u201d4. Which hormones control the fight or flight response? \u201d
Adrenaline and Epinephrine
\u201d5. What is type 1 diabetes and what is the treatment for this disease? \u201d
Diabetes is a disease where pancrease cannot regulate enough insulin,treatment would be
insulin injection.
\u201d6. Describe how Ca2+ levels in the blood are regulated by hormones. \u201d
The calcium levels are regulated by parathyroid and calcitonin hormone.Parathyroid connects
to the receptors on the bones causing to produce calcium,while calcitonin is released by
thyroid when calcium leves goes high.
\u201d7. How do the nervous and endocrine systems work together to maintain homeostasis of the body? \u201d
They both works together so as to maintain internal balance
Experiment 1: Microscopic Anatomy of the Endocrine System
Table 2: Experiment 1 Image Observations<\/p>\n\n\n\n
Lab 9 The Endocrine System BIO201L
Post-Lab Questions
\u201d1. Label the items in the following slide images based on your observations. \u201d
A- colloid
B- follicular cells
Image Type Image Observations
Thyroid Gland Thyroid gland had small red follicles,while some had yellow color on
the edge.Thyroid glands are pale red in color.
Parathyroid Gland Thyroid follicles are loosly packed .The thyroid follicles are dark blue
in color.
Pancreas They are lightily packed together in areas.
Adrenal Gland The medulla is surrounded by peripheral cortex
Pituitary Gland
The pars intermedia runs between the anterior and posterior
pituitary.
Anterior Pituitary
Gland
The cells has a well define structers.<\/p>\n\n\n\n
Lab 8 The Nervous System BIO201L
Student Name:
Access Code (located on the lid of your lab kit):
Pre-Lab Questions:
\u201d1. What is the primary function of the nervous system? This
includes;
(a)Maintaining homeostasis.
(b) Receiving sensory input
(c) Controlling muscles and glands.
\u201d2. Why does the cerebral cortex contain so many folds?
So as to increase the surface area of the cortex.
\u201d3. What is a nerve impulse?
It is a type of electrical signal that pass along the dendrites to generate a nerve impulse.\u201d
\u201d4. What are Schwann cells and what do they form?
This are cell that process the myelin sheaths in the peripheral nervous system. They form
myelin sheaths
\u201d5. What is an all-or-none response?
It is a nervous tissue that consist of the nerve cells and the neuroglia.
\u201d6. What two effects might neurotransmitters have?
The physical and psychological effects.
Experiment 1: Microscopic Anatomy of the Nervous System
Post-Lab Questions
\u201d1. Label the arrows in the slide images below based on your observations from the
experiment. \u201d<\/p>\n\n\n\n
Lab 8 The Nervous System BIO201L
A- Axon
B- Cell body
C- Myelin axon
D- Myelin sheath<\/p>\n\n\n\n
Lab 7: The Muscular System BIO201L
Student Name:
Access Code (located on the lid of your lab kit):
Pre-Lab Questions
\u201d1. How do banding patterns change when a muscle contract?
By the decrease of actin and myosin which causes them to come together.
\u201d2. What is the difference between a muscle organ, a muscle fiber, myofibril and a
myofilament?
Muscle organs, contains skeletal muscles and tissues structures. Muscle fiber this are cell that
are composed of myofibrils. Myofibril and myofilaments are found whining the muscle organ.
\u201d3. Outline the molecular mechanism for skeletal muscle contraction. At what point is ATP used
and why?
It used when resting and during exercises such as long-distance running. ATP is used to
produce more energy
\u201d4. Explain why rigor mortis occurs.
Because the ATP stops taking place and the buildup of calcium Ca2+ starts.
Experiment 1: Tendons and Ligaments
Post-Lab Questions
\u201d1. Label the arrows in the slide images below based on your observations from the
experiment.
\u201d
A-Chondrocytes
B- Collagen
C- Collagen fibers
D- Skeletal muscles
E- Nuclei
F-Collage<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
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