hogoneko ga kenkousindan wo uke, watasi ha maikurotippu wo kakuninsuru.

保護猫 literally means a protected/rescued cat.

• 保護 = protection, rescue
• 猫 = cat

In everyday Japanese, 保護猫 usually means a cat that has been rescued and is being cared for, often before adoption. So rescue cat is a very natural English translation.

が marks 保護猫 as the grammatical subject of the first clause:

• 保護猫が健康診断を受け
  = The rescue cat undergoes a health checkup

Here, が simply shows that the rescue cat is the one doing the action of 受ける.

Using が here feels natural when introducing the subject of that clause. It is not necessarily strongly contrastive; it just marks the cat as the subject.

は marks 私 as the topic of the second clause:

• 私はマイクロチップを確認する
  = As for me, I check the microchip

This helps show a shift from the cat’s action to the speaker’s action.

So the sentence structure is basically:

• The rescue cat undergoes a health checkup,
• and I check the microchip.

If you used 私が, it would put more emphasis on I as the person doing the checking, as if contrasting with someone else.

Because 健康診断 is the object of 受ける in the expression 健康診断を受ける.

This is a very common phrase meaning:

• to get a health checkup
• to undergo a medical examination

Even though English might say have a checkup or get examined, Japanese uses 受ける with を:

• 試験を受ける = take an exam
• 診察を受ける = receive a medical examination
• 健康診断を受ける = undergo a health checkup

受け、 is a written connective form of 受ける.

More specifically, it is the continuative/conjunctive form of the verb, followed by the Japanese comma 、. It links this clause to the next one.

So:

• 受け、私は…
  means something like
  undergoes a checkup, and I…

In everyday speech, 受けて would often sound more natural:

• 保護猫が健康診断を受けて、私はマイクロチップを確認する。

The version with 受け、 feels more written, formal, or narrative.

All of those are related, but in this sentence undergo is usually the best English match.

受ける is a broad verb that can mean things like:

• receive
• take
• undergo

With 健康診断, it means to undergo / have / receive a health checkup.

So the cat is not “accepting” something in a general sense; it is specifically being examined.

Because the grammar makes that clear.

In the first clause:

• 保護猫が = the rescue cat is the subject
• 健康診断を受け = undergoes the health checkup

So the cat is the one connected to 受ける.

Then the sentence switches subjects in the second clause:

• 私は = as for me / I
• マイクロチップを確認する = check the microchip

Japanese often leaves things out when they are understood, but here both subjects are actually shown, so the meaning is quite clear.

確認する is in the non-past form.

In Japanese, the non-past can express:

• present habitual action
• future action
• general procedure
• narration

So depending on context, this sentence could mean:

• I check the microchip
• I will check the microchip
• I check the microchip as part of the process

If this sentence appears in instructions, a report, or a description of a routine, the non-past is very natural.

Japanese often links clauses without using a separate word equivalent to English and.

Here, the connection is made by:

• the conjunctive verb form 受け
• the punctuation 、

So the sentence naturally flows from one action to the next.

English often needs an explicit and, but Japanese does not always. The connection is understood from the grammar.

Because マイクロチップ is a loanword, based on the English microchip.

Katakana is commonly used for:

• foreign loanwords
• onomatopoeia
• emphasis
• technical terms

So マイクロチップ in katakana is exactly what you would expect.

It is understandable and natural, especially in writing, reports, captions, or procedural descriptions.

But in everyday spoken Japanese, a native speaker might use slightly different phrasing, such as:

• 保護猫が健康診断を受けて、私はマイクロチップを確認する。
• 保護猫が健康診断を受けたあと、私はマイクロチップを確認する。
• 保護猫が健康診断を受け、私はマイクロチップを確認します。
  if speaking politely

So the original sentence is fine, but 受け、 has a somewhat more written feel than 受けて.