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6. Which of the following about cell junctions in epithelial cells is incorrect
- desmosomes are made of a plaque of protein containing keratin
- adhesion belts are part of communicating junctions
- hemi desmosomes link cells down onto the basal lamina
- desmosomes join adjacent cells together
7. Which of the following are part of more than one lobe
- speech and movement
- movement and planning
- planning and speech
- speech and orientation
8. Which statement is incorrect
- long distance chemical signalling is for local chemical mediators secreted by the paracrine system
- short distance signalling is for neurotransmitters produced by nerve cells
- short distance signalling is only between adjacent cells across a synapse
- the target of long distance signalling are cells such as adrenaline and testosterone
9. which of these is a definition of autocrine action
- hormones which are released only in the immediate vicinity
- hormones which act on different cells to ones that produce it
- the hormone acts on the same cell that produced it
- glands which secrete hormones directly into the blood
10. Which statement is incorrect
- endocrine, paracrine and nerve cells are linked by the hypothalamus
- nerve cells with an endocrine function are called neurocrine
- hormones are slow acting compared to neurotransmitters
- histamine is a fatty acid derivative
11. Which of these about Parkinsons is correct
- it affects the substantia nigra which is part of the basal lamina
- it involves the peptide amyloid B
- the movement reward pathway is disrupted leading to tremours
- SSRIs are used as treatment
12. Which of the following is incorrect
- the LH surge occurs before ovulation and indicates that ovulation has happened
- negative feedback example is when LH is released from the pituitary gland which stimulates the testis to produce testosterone
- menopause occurs due to the ovaries running out of oocytes
- menarche is at around 12 years