1968-01-18 — Page 11

白

CITY 香

第三第張三第

日九十月二十年未丁磨發

WAH KIU YAT PO

1 英文口

Hook

Kesman faecfes

生物科

Eggs

(十二)

廖百琴。

4 Bin-hooked embryor

in the gut of

Lology (12)

Secondary host

By Mr. Liu Pak Kum.

Answers for the last week

1. (a) Explain clearly the characteristic features of a Named internal animal parasite that you have studied.

(b) Outline the life history of this named parasite

and suggest methods by which the spread of thi parasite may be controlled.

ans.

(a) The tapeworm is a common parasite which lives as

an adult in the alimentary canal of man.

The sexually mature tapeworm consists of three main parts:

2. The head or scolex:

A muscular knob, there is no mouth, but There are four suckers, and in the front of chess a little cone, called the rostellum, which bears a double circle of hooks. The neck:

Behind the scorex is a short portion, called the neck followed by a string of: proglottides":

Proglottides;

They originate from the neck regiom There are no appendages, alimentary canal and only very elementary nervous and excretory organs,

A mature proglottia is almost completely filled with both male and female reproductive organs.

Eggs are

e picked.

up on grasses by

Secondary host. by pig.

Stages in the Life-history of the Tapeworm

The following suggested methods by which une spread. of this parasite may be controlled:

L Pork meat must be throughly cooked before

eaten by man.

2. Meat inspection should de carried out

regularly.

3. Medical treatment or infected patients, 4. Pigs must be kept under sanitary condition

5. Human faeces should be 'properly deposited, for they may contain proglottides or eggs.

?: (a) Make a large and Tabelled diagram of the human

eye see in section and use a table to compare

and contrast the structure between a human eye and a camera .

(b) Describe, with the help of diagram, the metroG

by which myopia can be corrected.

Ang.

(a) The table below is a comparison between a

( human eye "and a camera .

Suspensory ligament?

Tris-

pupil Cornea Lend

Rostellum

-Hooks.

-Suckers

Ciliary

} Neck

body

New proglottides

Vitreous

-Sclerotic

Choroid

-Yellow

Spot

Bland spor

A Scolex (Head part) of Tapeworm

Ciliary muscles

Retina

Median Vertical Section of the Human Eye

Kye

Camera

日八十月一年八六九一曆公年七十五國民中

四期每

人化等

官立文商專科學校昨舉行

十五屆畢業禮

抑勵

亦

復不賢

恥力振醫

勵 復力申中文價值 中國人而不識中文,不獨忘本 育之不振 雖因學生心理 亦未嘗不因政府之不予鼓 蔣法賢醫生夫人授頒獎 蔣醫生致詞 指出中文教

中雖夫

文因人

值生

(特訊)官立文商專科學校第十五码|九十三人,全校整段十一班。职校學生無鎖濕環境,做两科阿阿難,現在那授中

忘

本

予女

鼓

作左下)官立文商建设校憂佐子蒡校斯奥中*六太丑魅者描 將法安醫生伉畫主持官立文商專科學校畢蘗典精:〔上) 蔣夫人明文及做品與堅長生李雪姬。 (B) 催女八本報記者)

【亦爲一般可私之本也。 成,幸而本湯日有中文大學,惟是入學之 一般育法,再有健全中文專上學校及大學 ,非短暫志研究所能痛,必有良好之中學

; 校務32,各位愉快< 中國數千年之學術與文化,消如原,常文化新智元而努力,跟阿森館途無量而至。 薛之英明,榮路中國文化之世價值,因文化,發揚中國固有預禳之無慈地,故審·馬敬毙。.. 而毅然與辦漠中,則現之金交聚巾擊,一港在國際上所肩負之文化使命三衛且, 二等獎:沛芳,李永柆,楊榮娟, 假憶四十多年前,故港吾金文粱爵士 且藉此而溝通中西,常造民族開之次在興 杜燕娟。 以增進岗大民族間之友誼與陳解,只見金,各民族之岸民和索共處,等候一套中西 二年級:一等獎;本,張其新, 年之固有文化,促進中西文化之海油,藉一際性之東方六、市,崇法治,倘自由,曹妙油,汪埭源,呜購。 華健统研高等中文卿之票選,電民開塔:黄枝,張林雄,而賜我, 金園做客。 對二等獎:幹,勿佔盤,郭永槃, 一年級:一:李蔥年,羅根有, 台力倡提高本灣中文水準,發揚中國數千,籤解,實有碑於世界和平。香港一有三等:強淑文,英文驚,沈齊美, 四地留學者,已增至 多人。而在統計中,,法本及聖料等额程人法來一一九人,理 料趨向。 新時代文化,不橫光过程民族之前途,二等獎:梁月英,方抵基,劉燕圖,七年後本耢學生薑就 上一個年度之二千七·之運方面,助係以士六三七人,工鍪兰··從寬精掛於 三千一百多人,比起 本站留英联生所攻寶 佔絕大多數,計學·科一10人。

●超英、美、加、洪百餘人,衆加了四百 美士,出發,社 大四,第二三六晚发散學生研为一責成書後賞女中新校舍群暴行揭幕性,還含致廷賍做大供可

非加強橘輝學不可。 人才枢形缺乏,倘歆到陸通中西文化,

·覺校對於一科大爲熱機,整本港灣

科學校,識學員人數符與想,但贵校 一生埆努力不懈,發向此途這泡!余冕希望一下: 性質區營,安任至大,余京知青校全班和

將文化向以消際,無裨治平,以

̇及櫃

畢業獲獎名單第

三等獎公兆祥,李紹蓋,隨用熱,

·三年級:油,盧淑許」梁瑞衆。

林衆熙,陳亞異,榮關綿,該盟新,雖金 上五店平藥與燈,逗樂生及健獎生名單如 (特嵗)官立交商專科學校昨级行, 陴估檢,用餐和,無。

優異:李辉姬,徐淑明,阿伯康。 辣,周鈔網,將微咸。

錢,龍機,馬態灣,對熱並有,(孫) 在裔,張緊易,安檢榮,郭安义,刻滿傲、孫浩華,康惠英,招塞林,甘殴成,李获

大學學位不足

「緊慰,祂高級教育官彭照雄,洪育官黃谷煦校務。 ̇ 台何少將、及陳漢光、翻選民及其他驗育藥品,無法為科生致詞,岷業生代表向將饱。 夫人獻花致敬愛,而索體成, 財務,虞氏推出,該校學生本阙年共有三百 十又七,本來家商料及新聞料,後爲,爲中國人不識中國文學,不是忘本,即「文化之根,於一塊,以爲中國之一 陳冠珠致開會時,憑試樣學園子葵藏先校校校菊報告,興陳俊樑,貴校部立迄今已二路,但亦未審不因政府不戴构也。余留「龍,心中將固有文化之轉長涉收商洋 園,吳學派、梁子動、複校清詢委員會安 隨跛济法安夫人郦發畢梁文憑及各核及畾藥學員之跟皇成就,裘示衷心實為斷維,以忠怨維,大公無糍,今世界 附劑發育到何膽勝,中文大學校務主任胡,該部除任誤裝员外,參體務(任導師及協,課務已極繁重,然於後灣仍能合作,學習 宗旨,四前之內皆兄弟也, ,到世界剩二」 期典開始,首由主席張理高級發育官| 蔣法賢醫生致詞如下: 張貴 中文,日臮顯窖,因此體英交易牒出,以至己立立人,已達連人,以爲德育之一,實情歌,除盡龍。影 獲報全文港及各項撰品。微會人士,計有時把與鼓會,舉行各霰康樂活動,因此各 此志鬼而吃之,余市發知性婚方可,日 ,并黃虎感,始足著應不港社會之間,中黨現,機讓明,讓潭新,將底地,雞夠潮, 最尧典禮,於昨日下午五時學,假大會堂,外活動領受理該條件限制,然在書記祖國文學及有關科目,八巷九两地上學,大 一 學妹公佈在區塊中,變及 興趣亦復海厚,余融受此旒會對母校校书|即協如鼩形,爲儒家之一體,其致;周妙慣,方根基,林與濕,李園線,網 亲等受师和平,與世風之雷德館際,阿係」,分綉芬、鄭將利,周隔線,能喻籍,林 商,文,英文坐,沈濟美,黃耿 阿良,蘇香紐,貧婉籤,塔搬運,陳仁慈 ,林曜存~邵志雄,梁瑞華,您淑妍,周 本港居民部人佔百分之九十五以上,跟她 ,东部及中文之覓夢,對有所因,,單金珠,就我娟,汪標語,與雅,第一年級:洪邁淀,蔡炳良,噻光武, 少强,林王潑,梁群銻1月英,荽 心,岑鷹君,黃汝建,吳林中。 、及格:幽奉聚,交裕,朱北鴻,東: 二年級;謝立;羅安南,何啟海,江

酒好叛为六六年度凡三千餘人

出洋升學者多

【青年赴涎外升學考表,无六六六

Spermy

Ganitel

Vagina

shell gland Yolkyland

-Nerve⋅

cord Excretory Canal

Uterug

Testi

Ovary

A mature proglatted of the Tapeworm

(b) The life history of the sapeworm falls into

three stagesi

1. A free stage or ezz stam outside the body】

of any hoat.

2. The secondary host stage, as the ripë

Besta dewak off and pass out of the!

man) with the fnadas,

The eggo navelop into six-hooked ambryos within the proglottid. If they are then eaten by a secondary host (e.g. pig), they escape from their envelopes and bre their way through the walls of gut into the roluntary. muscles, where they form cyste the bladder-worÍA JA

The primary host atage, the tapeworm attains ite sexual maturity in the body of the primary host, At this stage, if insufficien oooked pork containing cysts is eaten by man, the bladder-worm is thrown off, the head becomes fastened to the wall of the gue of the host, and a series of proglottidos is developed.

A bladder-Wor

Scolex everted

I. Sclerotig

2. Choroid

3 ketina

4. Iris

5. Focusing objecte

automatically and io achieved by. altering of the focal length of the lens.

6. Depth of focus

automatically Increased when

king at nea) Heat

Matt black paint Sensitive film Iris diaphragm

Focusing is achieved by moving a lens of fixed gocus toward and away from the film.

Irie diaphragm has to be moved by hand.

(b) The myopia (short sight) is usually formed, as

in the case of the eye ball being too lang.

The correctiong as to wear spectacles witn suttable cancave lenses which diverge the raya of the 11ght before entering the eye.

PUBLIC LI

Light from distant object

Myopia (Short sight)

Concave lens

Focued in

front of

retina

1 An adult in the

gut of man (perine hest)

Scolex invaginated

A bladder-war scolen invaginated

•Uterius

I ripe proglotted with eggs passing out

Light from distant object

Exercise

Corrected by

concave lens

A: Nor this week

(a) With the aid of diagrams, describe clearly, the

structure of the ear of a Named mammal, (b) Part of the ear 18 concerned with the function

of balance of the body. Describe fully this portion of the ear and show how does it works

2. (a) What 18 a parasite? Show how the structure.

Dodder is specially adapted to enable it to live as a parasite.

(b) 11lustrate briefly, the illo nistory or this j

-plant.

所謂